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Finding the Fourth Proportional to 87,878.82, 131,821.89 and 25,549.32

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Solution

The fourth proportional to 87,878.82, 131,821.89 and 25,549.32 is: 38,325.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,878.82 : 131,821.89 = 25,549.32 : x
  2. Step 2: Convert to fraction form
    87,878.82/131,821.89 = 25,549.32/x
  3. Step 3: Cross multiply
    87,878.82x = 131,821.89 × 25,549.32
  4. Step 4: Simplify right side
    87,878.82x = 3,367,959,650.61
  5. Step 5: Solve for x
    x = 3,367,959,650.61/87,878.82
  6. Step 6: Final answer
    x = 38,325.04

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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.