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Finding the Fourth Proportional to 66,565.80, 99,834.30 and 29,125.80

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Solution

The fourth proportional to 66,565.80, 99,834.30 and 29,125.80 is: 43,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,565.80 : 99,834.30 = 29,125.80 : x
  2. Step 2: Convert to fraction form
    66,565.80/99,834.30 = 29,125.80/x
  3. Step 3: Cross multiply
    66,565.80x = 99,834.30 × 29,125.80
  4. Step 4: Simplify right side
    66,565.80x = 2,907,753,854.94
  5. Step 5: Solve for x
    x = 2,907,753,854.94/66,565.80
  6. Step 6: Final answer
    x = 43,682.40

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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.