Home / 67,259.12-100,414.91-51,380.42

Finding the Fourth Proportional to 67,259.12, 100,414.91 and 51,380.42

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Solution

The fourth proportional to 67,259.12, 100,414.91 and 51,380.42 is: 76,708.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,259.12 : 100,414.91 = 51,380.42 : x
  2. Step 2: Convert to fraction form
    67,259.12/100,414.91 = 51,380.42/x
  3. Step 3: Cross multiply
    67,259.12x = 100,414.91 × 51,380.42
  4. Step 4: Simplify right side
    67,259.12x = 5,159,359,876.44
  5. Step 5: Solve for x
    x = 5,159,359,876.44/67,259.12
  6. Step 6: Final answer
    x = 76,708.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.