Home / 89,618.88-123,673.10-49,331.80

Finding the Fourth Proportional to 89,618.88, 123,673.10 and 49,331.80

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Solution

The fourth proportional to 89,618.88, 123,673.10 and 49,331.80 is: 68,077.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,618.88 : 123,673.10 = 49,331.80 : x
  2. Step 2: Convert to fraction form
    89,618.88/123,673.10 = 49,331.80/x
  3. Step 3: Cross multiply
    89,618.88x = 123,673.10 × 49,331.80
  4. Step 4: Simplify right side
    89,618.88x = 6,101,016,634.58
  5. Step 5: Solve for x
    x = 6,101,016,634.58/89,618.88
  6. Step 6: Final answer
    x = 68,077.36

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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.