Home / 89,658.21-123,726.52-49,372.73

Finding the Fourth Proportional to 89,658.21, 123,726.52 and 49,372.73

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Solution

The fourth proportional to 89,658.21, 123,726.52 and 49,372.73 is: 68,133.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,658.21 : 123,726.52 = 49,372.73 : x
  2. Step 2: Convert to fraction form
    89,658.21/123,726.52 = 49,372.73/x
  3. Step 3: Cross multiply
    89,658.21x = 123,726.52 × 49,372.73
  4. Step 4: Simplify right side
    89,658.21x = 6,108,716,065.80
  5. Step 5: Solve for x
    x = 6,108,716,065.80/89,658.21
  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.