Is nikkor 85 and 50 the same pic quantity ?

Hello everyone , i have a question pls( Biggener question)

I recently bought the nikkor 50 mm 1.8 G for my d3200 and I am loving it, i can't go back and take pic with my 18-55 kit lens

My question is if I buy the 85mm 1.8g will my pictures quality and sharpness will be exactly like my 50mm but with longer reach??
I.e what will the 85mm give me that the 50mm will not?

And is the picture quality and sharpness between the 85 1.8 and 1.4 is worth the x3 pice tag?

Thanks in advance