Home / 89,644.15-123,707.91-49,357.09

Finding the Fourth Proportional to 89,644.15, 123,707.91 and 49,357.09

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Solution

The fourth proportional to 89,644.15, 123,707.91 and 49,357.09 is: 68,112.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,644.15 : 123,707.91 = 49,357.09 : x
  2. Step 2: Convert to fraction form
    89,644.15/123,707.91 = 49,357.09/x
  3. Step 3: Cross multiply
    89,644.15x = 123,707.91 × 49,357.09
  4. Step 4: Simplify right side
    89,644.15x = 6,105,862,447.58
  5. Step 5: Solve for x
    x = 6,105,862,447.58/89,644.15
  6. Step 6: Final answer
    x = 68,112.22

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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.