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Finding the Fourth Proportional to 57,630.73, 86,404.10 and 38,864.14

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Solution

The fourth proportional to 57,630.73, 86,404.10 and 38,864.14 is: 58,267.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,630.73 : 86,404.10 = 38,864.14 : x
  2. Step 2: Convert to fraction form
    57,630.73/86,404.10 = 38,864.14/x
  3. Step 3: Cross multiply
    57,630.73x = 86,404.10 × 38,864.14
  4. Step 4: Simplify right side
    57,630.73x = 3,358,021,038.97
  5. Step 5: Solve for x
    x = 3,358,021,038.97/57,630.73
  6. Step 6: Final answer
    x = 58,267.89

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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.