Finding the Fourth Proportional to 72,377.13, 108,565.74 and 19,787.07
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Solution
The fourth proportional to 72,377.13, 108,565.74 and 19,787.07 is: 29,680.62
Step by Step Solution
- Step 1: Write the proportion equation
72,377.13 : 108,565.74 = 19,787.07 : x - Step 2: Convert to fraction form
72,377.13/108,565.74 = 19,787.07/x - Step 3: Cross multiply
72,377.13x = 108,565.74 × 19,787.07 - Step 4: Simplify right side
72,377.13x = 2,148,197,896.98 - Step 5: Solve for x
x = 2,148,197,896.98/72,377.13 - Step 6: Final answer
x = 29,680.62
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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.