Home / 89,789.17-123,902.13-49,502.81

Finding the Fourth Proportional to 89,789.17, 123,902.13 and 49,502.81

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Solution

The fourth proportional to 89,789.17, 123,902.13 and 49,502.81 is: 68,310.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,789.17 : 123,902.13 = 49,502.81 : x
  2. Step 2: Convert to fraction form
    89,789.17/123,902.13 = 49,502.81/x
  3. Step 3: Cross multiply
    89,789.17x = 123,902.13 × 49,502.81
  4. Step 4: Simplify right side
    89,789.17x = 6,133,503,599.99
  5. Step 5: Solve for x
    x = 6,133,503,599.99/89,789.17
  6. Step 6: Final answer
    x = 68,310.06

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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.