Finding the Fourth Proportional to 73,937.70, 110,906.55 and 61,471.80
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Solution
The fourth proportional to 73,937.70, 110,906.55 and 61,471.80 is: 92,207.70
Step by Step Solution
- Step 1: Write the proportion equation
73,937.70 : 110,906.55 = 61,471.80 : x - Step 2: Convert to fraction form
73,937.70/110,906.55 = 61,471.80/x - Step 3: Cross multiply
73,937.70x = 110,906.55 × 61,471.80 - Step 4: Simplify right side
73,937.70x = 6,817,625,260.29 - Step 5: Solve for x
x = 6,817,625,260.29/73,937.70 - Step 6: Final answer
x = 92,207.70
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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.