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Finding the Fourth Proportional to 66,372.92, 99,429.01 and 43,814.87

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Solution

The fourth proportional to 66,372.92, 99,429.01 and 43,814.87 is: 65,636.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,372.92 : 99,429.01 = 43,814.87 : x
  2. Step 2: Convert to fraction form
    66,372.92/99,429.01 = 43,814.87/x
  3. Step 3: Cross multiply
    66,372.92x = 99,429.01 × 43,814.87
  4. Step 4: Simplify right side
    66,372.92x = 4,356,469,147.38
  5. Step 5: Solve for x
    x = 4,356,469,147.38/66,372.92
  6. Step 6: Final answer
    x = 65,636.24

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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.