Home / 80,306.28-120,475.74-27,708.90

Finding the Fourth Proportional to 80,306.28, 120,475.74 and 27,708.90

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Solution

The fourth proportional to 80,306.28, 120,475.74 and 27,708.90 is: 41,568.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,306.28 : 120,475.74 = 27,708.90 : x
  2. Step 2: Convert to fraction form
    80,306.28/120,475.74 = 27,708.90/x
  3. Step 3: Cross multiply
    80,306.28x = 120,475.74 × 27,708.90
  4. Step 4: Simplify right side
    80,306.28x = 3,338,250,232.09
  5. Step 5: Solve for x
    x = 3,338,250,232.09/80,306.28
  6. Step 6: Final answer
    x = 41,568.98

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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.