Home / 80,262.28-120,471.18-38,738.44

Finding the Fourth Proportional to 80,262.28, 120,471.18 and 38,738.44

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Solution

The fourth proportional to 80,262.28, 120,471.18 and 38,738.44 is: 58,145.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,262.28 : 120,471.18 = 38,738.44 : x
  2. Step 2: Convert to fraction form
    80,262.28/120,471.18 = 38,738.44/x
  3. Step 3: Cross multiply
    80,262.28x = 120,471.18 × 38,738.44
  4. Step 4: Simplify right side
    80,262.28x = 4,666,865,578.16
  5. Step 5: Solve for x
    x = 4,666,865,578.16/80,262.28
  6. Step 6: Final answer
    x = 58,145.19

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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.