Home / 89,738.12-123,832.75-49,451.88

Finding the Fourth Proportional to 89,738.12, 123,832.75 and 49,451.88

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Solution

The fourth proportional to 89,738.12, 123,832.75 and 49,451.88 is: 68,240.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,738.12 : 123,832.75 = 49,451.88 : x
  2. Step 2: Convert to fraction form
    89,738.12/123,832.75 = 49,451.88/x
  3. Step 3: Cross multiply
    89,738.12x = 123,832.75 × 49,451.88
  4. Step 4: Simplify right side
    89,738.12x = 6,123,761,820.78
  5. Step 5: Solve for x
    x = 6,123,761,820.78/89,738.12
  6. Step 6: Final answer
    x = 68,240.36

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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.