Home / 89,634.76-123,691.27-49,340.65

Finding the Fourth Proportional to 89,634.76, 123,691.27 and 49,340.65

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Solution

The fourth proportional to 89,634.76, 123,691.27 and 49,340.65 is: 68,087.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,634.76 : 123,691.27 = 49,340.65 : x
  2. Step 2: Convert to fraction form
    89,634.76/123,691.27 = 49,340.65/x
  3. Step 3: Cross multiply
    89,634.76x = 123,691.27 × 49,340.65
  4. Step 4: Simplify right side
    89,634.76x = 6,103,007,661.13
  5. Step 5: Solve for x
    x = 6,103,007,661.13/89,634.76
  6. Step 6: Final answer
    x = 68,087.51

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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.