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Finding the Fourth Proportional to 87,952, 131,928 and 38,704

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Solution

The fourth proportional to 87,952, 131,928 and 38,704 is: 58,056

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,952 : 131,928 = 38,704 : x
  2. Step 2: Convert to fraction form
    87,952/131,928 = 38,704/x
  3. Step 3: Cross multiply
    87,952x = 131,928 × 38,704
  4. Step 4: Simplify right side
    87,952x = 5,106,141,312
  5. Step 5: Solve for x
    x = 5,106,141,312/87,952
  6. Step 6: Final answer
    x = 58,056

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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.