We have had one person on this site with a PSA of 80 and no cancer, we have also had a few with a PSA around 20 with no cancer, but in general once a PSA is above 30 it is extremely likely to be cancer.
As Steve says, you need the biopsy to know for certain. On your other thread you are concerned about advanced cancer. I usually say to people if the PSA is below 30 it is very unlikely to be advanced, and if it is above 200 it is very likely to be advanced. He is in between those two numbers so your guess is as good as mine.
On the subject of guessing, is this any use to you, having a bunch of random people on the internet trying to guess his diagnosis based on incomplete information, when you have professional medics who will give you a definitive answer in a few weeks? I'm hoping by engaging in this conversation with us, that you can see prostate cancer is just a normal thing that happens to normal men and though it can have an impact on our lives it doesn't just put an end to them.
I think a bone scan will be required soon which is far easier than having an MRI.