Home / 89,658.35-123,728.51-49,372.02

Finding the Fourth Proportional to 89,658.35, 123,728.51 and 49,372.02

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Solution

The fourth proportional to 89,658.35, 123,728.51 and 49,372.02 is: 68,133.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,658.35 : 123,728.51 = 49,372.02 : x
  2. Step 2: Convert to fraction form
    89,658.35/123,728.51 = 49,372.02/x
  3. Step 3: Cross multiply
    89,658.35x = 123,728.51 × 49,372.02
  4. Step 4: Simplify right side
    89,658.35x = 6,108,726,129.74
  5. Step 5: Solve for x
    x = 6,108,726,129.74/89,658.35
  6. Step 6: Final answer
    x = 68,133.37

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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.