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Finding the Fourth Proportional to 87,880.87, 131,781.52 and 27,892.05

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Solution

The fourth proportional to 87,880.87, 131,781.52 and 27,892.05 is: 41,825.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,880.87 : 131,781.52 = 27,892.05 : x
  2. Step 2: Convert to fraction form
    87,880.87/131,781.52 = 27,892.05/x
  3. Step 3: Cross multiply
    87,880.87x = 131,781.52 × 27,892.05
  4. Step 4: Simplify right side
    87,880.87x = 3,675,656,744.92
  5. Step 5: Solve for x
    x = 3,675,656,744.92/87,880.87
  6. Step 6: Final answer
    x = 41,825.45

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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.