Home / 79,311.20-118,972.26-23,151.78

Finding the Fourth Proportional to 79,311.20, 118,972.26 and 23,151.78

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Solution

The fourth proportional to 79,311.20, 118,972.26 and 23,151.78 is: 34,729.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,311.20 : 118,972.26 = 23,151.78 : x
  2. Step 2: Convert to fraction form
    79,311.20/118,972.26 = 23,151.78/x
  3. Step 3: Cross multiply
    79,311.20x = 118,972.26 × 23,151.78
  4. Step 4: Simplify right side
    79,311.20x = 2,754,419,589.62
  5. Step 5: Solve for x
    x = 2,754,419,589.62/79,311.20
  6. Step 6: Final answer
    x = 34,729.27

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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.