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Finding the Fourth Proportional to 89,757.91, 123,873.04 and 49,478.84

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Solution

The fourth proportional to 89,757.91, 123,873.04 and 49,478.84 is: 68,284.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,757.91 : 123,873.04 = 49,478.84 : x
  2. Step 2: Convert to fraction form
    89,757.91/123,873.04 = 49,478.84/x
  3. Step 3: Cross multiply
    89,757.91x = 123,873.04 × 49,478.84
  4. Step 4: Simplify right side
    89,757.91x = 6,129,094,326.47
  5. Step 5: Solve for x
    x = 6,129,094,326.47/89,757.91
  6. Step 6: Final answer
    x = 68,284.73

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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.