Home / 80,716.38-120,996.81-25,299.42

Finding the Fourth Proportional to 80,716.38, 120,996.81 and 25,299.42

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Solution

The fourth proportional to 80,716.38, 120,996.81 and 25,299.42 is: 37,924.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,716.38 : 120,996.81 = 25,299.42 : x
  2. Step 2: Convert to fraction form
    80,716.38/120,996.81 = 25,299.42/x
  3. Step 3: Cross multiply
    80,716.38x = 120,996.81 × 25,299.42
  4. Step 4: Simplify right side
    80,716.38x = 3,061,149,114.85
  5. Step 5: Solve for x
    x = 3,061,149,114.85/80,716.38
  6. Step 6: Final answer
    x = 37,924.76

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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.