Home / 89,331.60-123,278.16-49,047.12

Finding the Fourth Proportional to 89,331.60, 123,278.16 and 49,047.12

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Solution

The fourth proportional to 89,331.60, 123,278.16 and 49,047.12 is: 67,685.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,331.60 : 123,278.16 = 49,047.12 : x
  2. Step 2: Convert to fraction form
    89,331.60/123,278.16 = 49,047.12/x
  3. Step 3: Cross multiply
    89,331.60x = 123,278.16 × 49,047.12
  4. Step 4: Simplify right side
    89,331.60x = 6,046,438,706.90
  5. Step 5: Solve for x
    x = 6,046,438,706.90/89,331.60
  6. Step 6: Final answer
    x = 67,685.33

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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.