Home / 80,593.28-111,231.92-67,143.20

Finding the Fourth Proportional to 80,593.28, 111,231.92 and 67,143.20

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Solution

The fourth proportional to 80,593.28, 111,231.92 and 67,143.20 is: 92,668.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,593.28 : 111,231.92 = 67,143.20 : x
  2. Step 2: Convert to fraction form
    80,593.28/111,231.92 = 67,143.20/x
  3. Step 3: Cross multiply
    80,593.28x = 111,231.92 × 67,143.20
  4. Step 4: Simplify right side
    80,593.28x = 7,468,467,050.94
  5. Step 5: Solve for x
    x = 7,468,467,050.94/80,593.28
  6. Step 6: Final answer
    x = 92,668.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.