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Finding the Fourth Proportional to 66,314.52, 99,472.83 and 36,919.19

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Solution

The fourth proportional to 66,314.52, 99,472.83 and 36,919.19 is: 55,379.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,314.52 : 99,472.83 = 36,919.19 : x
  2. Step 2: Convert to fraction form
    66,314.52/99,472.83 = 36,919.19/x
  3. Step 3: Cross multiply
    66,314.52x = 99,472.83 × 36,919.19
  4. Step 4: Simplify right side
    66,314.52x = 3,672,456,310.61
  5. Step 5: Solve for x
    x = 3,672,456,310.61/66,314.52
  6. Step 6: Final answer
    x = 55,379.37

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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.