Home / 89,640.53-123,702.17-49,354.96

Finding the Fourth Proportional to 89,640.53, 123,702.17 and 49,354.96

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Solution

The fourth proportional to 89,640.53, 123,702.17 and 49,354.96 is: 68,108.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,640.53 : 123,702.17 = 49,354.96 : x
  2. Step 2: Convert to fraction form
    89,640.53/123,702.17 = 49,354.96/x
  3. Step 3: Cross multiply
    89,640.53x = 123,702.17 × 49,354.96
  4. Step 4: Simplify right side
    89,640.53x = 6,105,315,652.26
  5. Step 5: Solve for x
    x = 6,105,315,652.26/89,640.53
  6. Step 6: Final answer
    x = 68,108.87

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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.