Finding the Fourth Proportional to 73,934.80, 110,902.20 and 54,251.80
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Solution
The fourth proportional to 73,934.80, 110,902.20 and 54,251.80 is: 81,377.70
Step by Step Solution
- Step 1: Write the proportion equation
73,934.80 : 110,902.20 = 54,251.80 : x - Step 2: Convert to fraction form
73,934.80/110,902.20 = 54,251.80/x - Step 3: Cross multiply
73,934.80x = 110,902.20 × 54,251.80 - Step 4: Simplify right side
73,934.80x = 6,016,643,973.96 - Step 5: Solve for x
x = 6,016,643,973.96/73,934.80 - Step 6: Final answer
x = 81,377.70
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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.