Home / 80,372.97-120,567.45-29,785.50

Finding the Fourth Proportional to 80,372.97, 120,567.45 and 29,785.50

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Solution

The fourth proportional to 80,372.97, 120,567.45 and 29,785.50 is: 44,681.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,372.97 : 120,567.45 = 29,785.50 : x
  2. Step 2: Convert to fraction form
    80,372.97/120,567.45 = 29,785.50/x
  3. Step 3: Cross multiply
    80,372.97x = 120,567.45 × 29,785.50
  4. Step 4: Simplify right side
    80,372.97x = 3,591,161,781.98
  5. Step 5: Solve for x
    x = 3,591,161,781.98/80,372.97
  6. Step 6: Final answer
    x = 44,681.21

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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.