Home / 89,781.21-123,898.91-49,496.41

Finding the Fourth Proportional to 89,781.21, 123,898.91 and 49,496.41

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Solution

The fourth proportional to 89,781.21, 123,898.91 and 49,496.41 is: 68,305.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,781.21 : 123,898.91 = 49,496.41 : x
  2. Step 2: Convert to fraction form
    89,781.21/123,898.91 = 49,496.41/x
  3. Step 3: Cross multiply
    89,781.21x = 123,898.91 × 49,496.41
  4. Step 4: Simplify right side
    89,781.21x = 6,132,551,247.91
  5. Step 5: Solve for x
    x = 6,132,551,247.91/89,781.21
  6. Step 6: Final answer
    x = 68,305.51

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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.