Home / 89,813.74-123,940.11-49,529.20

Finding the Fourth Proportional to 89,813.74, 123,940.11 and 49,529.20

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Solution

The fourth proportional to 89,813.74, 123,940.11 and 49,529.20 is: 68,348.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,813.74 : 123,940.11 = 49,529.20 : x
  2. Step 2: Convert to fraction form
    89,813.74/123,940.11 = 49,529.20/x
  3. Step 3: Cross multiply
    89,813.74x = 123,940.11 × 49,529.20
  4. Step 4: Simplify right side
    89,813.74x = 6,138,654,496.21
  5. Step 5: Solve for x
    x = 6,138,654,496.21/89,813.74
  6. Step 6: Final answer
    x = 68,348.72

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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.