Home / 91,402.43-126,134.46-51,115.73

Finding the Fourth Proportional to 91,402.43, 126,134.46 and 51,115.73

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Solution

The fourth proportional to 91,402.43, 126,134.46 and 51,115.73 is: 70,539.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,402.43 : 126,134.46 = 51,115.73 : x
  2. Step 2: Convert to fraction form
    91,402.43/126,134.46 = 51,115.73/x
  3. Step 3: Cross multiply
    91,402.43x = 126,134.46 × 51,115.73
  4. Step 4: Simplify right side
    91,402.43x = 6,447,454,370.38
  5. Step 5: Solve for x
    x = 6,447,454,370.38/91,402.43
  6. Step 6: Final answer
    x = 70,539.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.