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Finding the Fourth Proportional to 40,869.92, 61,305.02 and 11,287.10

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Solution

The fourth proportional to 40,869.92, 61,305.02 and 11,287.10 is: 16,930.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,869.92 : 61,305.02 = 11,287.10 : x
  2. Step 2: Convert to fraction form
    40,869.92/61,305.02 = 11,287.10/x
  3. Step 3: Cross multiply
    40,869.92x = 61,305.02 × 11,287.10
  4. Step 4: Simplify right side
    40,869.92x = 691,955,891.24
  5. Step 5: Solve for x
    x = 691,955,891.24/40,869.92
  6. Step 6: Final answer
    x = 16,930.69

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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.