Home / 80,227.42-120,378-30,324.85

Finding the Fourth Proportional to 80,227.42, 120,378 and 30,324.85

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Solution

The fourth proportional to 80,227.42, 120,378 and 30,324.85 is: 45,501.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,227.42 : 120,378 = 30,324.85 : x
  2. Step 2: Convert to fraction form
    80,227.42/120,378 = 30,324.85/x
  3. Step 3: Cross multiply
    80,227.42x = 120,378 × 30,324.85
  4. Step 4: Simplify right side
    80,227.42x = 3,650,444,793.30
  5. Step 5: Solve for x
    x = 3,650,444,793.30/80,227.42
  6. Step 6: Final answer
    x = 45,501.21

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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.