Home / 83,379.38-125,082.02-27,988.34

Finding the Fourth Proportional to 83,379.38, 125,082.02 and 27,988.34

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Solution

The fourth proportional to 83,379.38, 125,082.02 and 27,988.34 is: 41,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,379.38 : 125,082.02 = 27,988.34 : x
  2. Step 2: Convert to fraction form
    83,379.38/125,082.02 = 27,988.34/x
  3. Step 3: Cross multiply
    83,379.38x = 125,082.02 × 27,988.34
  4. Step 4: Simplify right side
    83,379.38x = 3,500,837,548.21
  5. Step 5: Solve for x
    x = 3,500,837,548.21/83,379.38
  6. Step 6: Final answer
    x = 41,986.85

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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.