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Finding the Fourth Proportional to 66,691.07, 100,089.13 and 29,276.97

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Solution

The fourth proportional to 66,691.07, 100,089.13 and 29,276.97 is: 43,938.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,691.07 : 100,089.13 = 29,276.97 : x
  2. Step 2: Convert to fraction form
    66,691.07/100,089.13 = 29,276.97/x
  3. Step 3: Cross multiply
    66,691.07x = 100,089.13 × 29,276.97
  4. Step 4: Simplify right side
    66,691.07x = 2,930,306,456.34
  5. Step 5: Solve for x
    x = 2,930,306,456.34/66,691.07
  6. Step 6: Final answer
    x = 43,938.51

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1.5x scale

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.