Home / 84,259.38-126,402.03-31,672.56

Finding the Fourth Proportional to 84,259.38, 126,402.03 and 31,672.56

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Solution

The fourth proportional to 84,259.38, 126,402.03 and 31,672.56 is: 47,513.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,259.38 : 126,402.03 = 31,672.56 : x
  2. Step 2: Convert to fraction form
    84,259.38/126,402.03 = 31,672.56/x
  3. Step 3: Cross multiply
    84,259.38x = 126,402.03 × 31,672.56
  4. Step 4: Simplify right side
    84,259.38x = 4,003,475,879.30
  5. Step 5: Solve for x
    x = 4,003,475,879.30/84,259.38
  6. Step 6: Final answer
    x = 47,513.71

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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.