Home / 80,324.46-120,504.31-30,404.97

Finding the Fourth Proportional to 80,324.46, 120,504.31 and 30,404.97

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Solution

The fourth proportional to 80,324.46, 120,504.31 and 30,404.97 is: 45,614.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,324.46 : 120,504.31 = 30,404.97 : x
  2. Step 2: Convert to fraction form
    80,324.46/120,504.31 = 30,404.97/x
  3. Step 3: Cross multiply
    80,324.46x = 120,504.31 × 30,404.97
  4. Step 4: Simplify right side
    80,324.46x = 3,663,929,854.41
  5. Step 5: Solve for x
    x = 3,663,929,854.41/80,324.46
  6. Step 6: Final answer
    x = 45,614.12

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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.