Finding the Fourth Proportional to 73,315.80, 101,176.98 and 39,781.80
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Solution
The fourth proportional to 73,315.80, 101,176.98 and 39,781.80 is: 54,899.52
Step by Step Solution
- Step 1: Write the proportion equation
73,315.80 : 101,176.98 = 39,781.80 : x - Step 2: Convert to fraction form
73,315.80/101,176.98 = 39,781.80/x - Step 3: Cross multiply
73,315.80x = 101,176.98 × 39,781.80 - Step 4: Simplify right side
73,315.80x = 4,025,002,382.96 - Step 5: Solve for x
x = 4,025,002,382.96/73,315.80 - Step 6: Final answer
x = 54,899.52
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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.