Home / 87,934.72-131,843.76-28,749.64

Finding the Fourth Proportional to 87,934.72, 131,843.76 and 28,749.64

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Solution

The fourth proportional to 87,934.72, 131,843.76 and 28,749.64 is: 43,105.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,934.72 : 131,843.76 = 28,749.64 : x
  2. Step 2: Convert to fraction form
    87,934.72/131,843.76 = 28,749.64/x
  3. Step 3: Cross multiply
    87,934.72x = 131,843.76 × 28,749.64
  4. Step 4: Simplify right side
    87,934.72x = 3,790,460,636.25
  5. Step 5: Solve for x
    x = 3,790,460,636.25/87,934.72
  6. Step 6: Final answer
    x = 43,105.39

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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.