Home / 89,531.23-123,553.03-49,247.70

Finding the Fourth Proportional to 89,531.23, 123,553.03 and 49,247.70

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Solution

The fourth proportional to 89,531.23, 123,553.03 and 49,247.70 is: 67,961.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,531.23 : 123,553.03 = 49,247.70 : x
  2. Step 2: Convert to fraction form
    89,531.23/123,553.03 = 49,247.70/x
  3. Step 3: Cross multiply
    89,531.23x = 123,553.03 × 49,247.70
  4. Step 4: Simplify right side
    89,531.23x = 6,084,702,555.53
  5. Step 5: Solve for x
    x = 6,084,702,555.53/89,531.23
  6. Step 6: Final answer
    x = 67,961.79

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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.