Home / 80,344.55-120,431.85-29,711.04

Finding the Fourth Proportional to 80,344.55, 120,431.85 and 29,711.04

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Solution

The fourth proportional to 80,344.55, 120,431.85 and 29,711.04 is: 44,535.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,344.55 : 120,431.85 = 29,711.04 : x
  2. Step 2: Convert to fraction form
    80,344.55/120,431.85 = 29,711.04/x
  3. Step 3: Cross multiply
    80,344.55x = 120,431.85 × 29,711.04
  4. Step 4: Simplify right side
    80,344.55x = 3,578,155,512.62
  5. Step 5: Solve for x
    x = 3,578,155,512.62/80,344.55
  6. Step 6: Final answer
    x = 44,535.14

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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.