Finding the Fourth Proportional to 73,472.40, 101,392.92 and 39,939.12
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Solution
The fourth proportional to 73,472.40, 101,392.92 and 39,939.12 is: 55,116.53
Step by Step Solution
- Step 1: Write the proportion equation
73,472.40 : 101,392.92 = 39,939.12 : x - Step 2: Convert to fraction form
73,472.40/101,392.92 = 39,939.12/x - Step 3: Cross multiply
73,472.40x = 101,392.92 × 39,939.12 - Step 4: Simplify right side
73,472.40x = 4,049,543,999.03 - Step 5: Solve for x
x = 4,049,543,999.03/73,472.40 - Step 6: Final answer
x = 55,116.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.