Home / 83,414.10-125,120.14-20,234.76

Finding the Fourth Proportional to 83,414.10, 125,120.14 and 20,234.76

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Solution

The fourth proportional to 83,414.10, 125,120.14 and 20,234.76 is: 30,351.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,414.10 : 125,120.14 = 20,234.76 : x
  2. Step 2: Convert to fraction form
    83,414.10/125,120.14 = 20,234.76/x
  3. Step 3: Cross multiply
    83,414.10x = 125,120.14 × 20,234.76
  4. Step 4: Simplify right side
    83,414.10x = 2,531,776,004.07
  5. Step 5: Solve for x
    x = 2,531,776,004.07/83,414.10
  6. Step 6: Final answer
    x = 30,351.89

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1.5x scale

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.