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Finding the Fourth Proportional to 87,841.98, 131,787.90 and 35,288.40

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Solution

The fourth proportional to 87,841.98, 131,787.90 and 35,288.40 is: 52,942.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,841.98 : 131,787.90 = 35,288.40 : x
  2. Step 2: Convert to fraction form
    87,841.98/131,787.90 = 35,288.40/x
  3. Step 3: Cross multiply
    87,841.98x = 131,787.90 × 35,288.40
  4. Step 4: Simplify right side
    87,841.98x = 4,650,584,130.36
  5. Step 5: Solve for x
    x = 4,650,584,130.36/87,841.98
  6. Step 6: Final answer
    x = 52,942.62

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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.