Finding the Fourth Proportional to 73,471.92, 110,337.09 and 72,420.12
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Solution
The fourth proportional to 73,471.92, 110,337.09 and 72,420.12 is: 108,757.54
Step by Step Solution
- Step 1: Write the proportion equation
73,471.92 : 110,337.09 = 72,420.12 : x - Step 2: Convert to fraction form
73,471.92/110,337.09 = 72,420.12/x - Step 3: Cross multiply
73,471.92x = 110,337.09 × 72,420.12 - Step 4: Simplify right side
73,471.92x = 7,990,625,298.25 - Step 5: Solve for x
x = 7,990,625,298.25/73,471.92 - Step 6: Final answer
x = 108,757.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.