Home / 80,197.20-120,294.42-27,605.52

Finding the Fourth Proportional to 80,197.20, 120,294.42 and 27,605.52

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Solution

The fourth proportional to 80,197.20, 120,294.42 and 27,605.52 is: 41,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,197.20 : 120,294.42 = 27,605.52 : x
  2. Step 2: Convert to fraction form
    80,197.20/120,294.42 = 27,605.52/x
  3. Step 3: Cross multiply
    80,197.20x = 120,294.42 × 27,605.52
  4. Step 4: Simplify right side
    80,197.20x = 3,320,790,017.20
  5. Step 5: Solve for x
    x = 3,320,790,017.20/80,197.20
  6. Step 6: Final answer
    x = 41,407.80

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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.