Home / 89,310.79-123,249.16-49,028.68

Finding the Fourth Proportional to 89,310.79, 123,249.16 and 49,028.68

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Solution

The fourth proportional to 89,310.79, 123,249.16 and 49,028.68 is: 67,659.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,310.79 : 123,249.16 = 49,028.68 : x
  2. Step 2: Convert to fraction form
    89,310.79/123,249.16 = 49,028.68/x
  3. Step 3: Cross multiply
    89,310.79x = 123,249.16 × 49,028.68
  4. Step 4: Simplify right side
    89,310.79x = 6,042,743,625.91
  5. Step 5: Solve for x
    x = 6,042,743,625.91/89,310.79
  6. Step 6: Final answer
    x = 67,659.73

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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.