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Finding the Fourth Proportional to 91,565.88, 137,237.88 and 38,864.68

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Solution

The fourth proportional to 91,565.88, 137,237.88 and 38,864.68 is: 58,249.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,565.88 : 137,237.88 = 38,864.68 : x
  2. Step 2: Convert to fraction form
    91,565.88/137,237.88 = 38,864.68/x
  3. Step 3: Cross multiply
    91,565.88x = 137,237.88 × 38,864.68
  4. Step 4: Simplify right side
    91,565.88x = 5,333,706,290.08
  5. Step 5: Solve for x
    x = 5,333,706,290.08/91,565.88
  6. Step 6: Final answer
    x = 58,249.93

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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.