What is Log Base 4 of 72?

The below is the work with steps to find what is log base 4 of 72 shows how the input values are being used in the log base 4 functions. Formula:
log_b(x) = y, if b^y = x

Input:
x = 72
b = 4

Solution:
y = log₄ 72
= log(4 x 2 x 3 x 3)
= log₄(4) + log₄(2) + log₄(3) + log₄(3)
= 1 + 0.5 + 0.7925 + 0.7925
= 3.085
log₄(72) = 3.085