Home / 82,234.88-123,352.92-19,905.38

Finding the Fourth Proportional to 82,234.88, 123,352.92 and 19,905.38

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Solution

The fourth proportional to 82,234.88, 123,352.92 and 19,905.38 is: 29,858.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,234.88 : 123,352.92 = 19,905.38 : x
  2. Step 2: Convert to fraction form
    82,234.88/123,352.92 = 19,905.38/x
  3. Step 3: Cross multiply
    82,234.88x = 123,352.92 × 19,905.38
  4. Step 4: Simplify right side
    82,234.88x = 2,455,386,129.95
  5. Step 5: Solve for x
    x = 2,455,386,129.95/82,234.88
  6. Step 6: Final answer
    x = 29,858.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.