Home / 89,780.70-123,892.02-49,496.16

Finding the Fourth Proportional to 89,780.70, 123,892.02 and 49,496.16

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Solution

The fourth proportional to 89,780.70, 123,892.02 and 49,496.16 is: 68,301.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,780.70 : 123,892.02 = 49,496.16 : x
  2. Step 2: Convert to fraction form
    89,780.70/123,892.02 = 49,496.16/x
  3. Step 3: Cross multiply
    89,780.70x = 123,892.02 × 49,496.16
  4. Step 4: Simplify right side
    89,780.70x = 6,132,179,244.64
  5. Step 5: Solve for x
    x = 6,132,179,244.64/89,780.70
  6. Step 6: Final answer
    x = 68,301.75

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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.