Let 'x' and 'y' represent the numbers and let y>x.

y : x = 3

y = 3x

The product of the two numbers is 48:

x*y = 48

plug y = 3x into the last equation:

x*3x = 48

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click here to see the equation solved for x

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x1 = 4

x2 = -4

For x = 4 we have y =3*4 = 12, and 12 > 4 follows one solution is: the numbers are 4 and 12.

For x = -4 we have y =3*(-4) = -12, but on the other hand -12 is not bigger than -4 follows this is not a solution since it doesn't satisfy the condition y > x.