Home / 80,531.72-120,749.88-24,354.80

Finding the Fourth Proportional to 80,531.72, 120,749.88 and 24,354.80

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Solution

The fourth proportional to 80,531.72, 120,749.88 and 24,354.80 is: 36,517.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,531.72 : 120,749.88 = 24,354.80 : x
  2. Step 2: Convert to fraction form
    80,531.72/120,749.88 = 24,354.80/x
  3. Step 3: Cross multiply
    80,531.72x = 120,749.88 × 24,354.80
  4. Step 4: Simplify right side
    80,531.72x = 2,940,839,177.42
  5. Step 5: Solve for x
    x = 2,940,839,177.42/80,531.72
  6. Step 6: Final answer
    x = 36,517.77

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1.5x scale

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.