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Finding the Fourth Proportional to 40,882, 60,965.21 and 40,508.32

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Solution

The fourth proportional to 40,882, 60,965.21 and 40,508.32 is: 60,407.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,882 : 60,965.21 = 40,508.32 : x
  2. Step 2: Convert to fraction form
    40,882/60,965.21 = 40,508.32/x
  3. Step 3: Cross multiply
    40,882x = 60,965.21 × 40,508.32
  4. Step 4: Simplify right side
    40,882x = 2,469,598,235.55
  5. Step 5: Solve for x
    x = 2,469,598,235.55/40,882
  6. Step 6: Final answer
    x = 60,407.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.