Home / 90,715.52-125,190.63-49,882.76

Finding the Fourth Proportional to 90,715.52, 125,190.63 and 49,882.76

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Solution

The fourth proportional to 90,715.52, 125,190.63 and 49,882.76 is: 68,839.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,715.52 : 125,190.63 = 49,882.76 : x
  2. Step 2: Convert to fraction form
    90,715.52/125,190.63 = 49,882.76/x
  3. Step 3: Cross multiply
    90,715.52x = 125,190.63 × 49,882.76
  4. Step 4: Simplify right side
    90,715.52x = 6,244,854,181.11
  5. Step 5: Solve for x
    x = 6,244,854,181.11/90,715.52
  6. Step 6: Final answer
    x = 68,839.97

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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.