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Finding the Fourth Proportional to 40,753.82, 61,118.88 and 15,788.30

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Solution

The fourth proportional to 40,753.82, 61,118.88 and 15,788.30 is: 23,677.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,753.82 : 61,118.88 = 15,788.30 : x
  2. Step 2: Convert to fraction form
    40,753.82/61,118.88 = 15,788.30/x
  3. Step 3: Cross multiply
    40,753.82x = 61,118.88 × 15,788.30
  4. Step 4: Simplify right side
    40,753.82x = 964,963,213.10
  5. Step 5: Solve for x
    x = 964,963,213.10/40,753.82
  6. Step 6: Final answer
    x = 23,677.86

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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.