What is the next number in the pattern? 0.04, 0.2, 1, 5,

The pattern above follows a geometric progression.  Each number in the sequence is a multiple of the other.  This is evident because:

   0.2 ÷ 0.04 = 5
        1  ÷ 0.2 = 5
            5 ÷ 1 = 5

∴ this is evidence that the each number in the series is 5 times that of the number that precedes it.  Based on this confirmation then the other two numbers in the sequence are ( 5 × 5) and (5 × 5 × 5).

Thus the completed series looks like 0.04, 0.2, 1, 5, 25, 125