Home / 87,913.43-131,856.57-28,749

Finding the Fourth Proportional to 87,913.43, 131,856.57 and 28,749

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Solution

The fourth proportional to 87,913.43, 131,856.57 and 28,749 is: 43,119.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,913.43 : 131,856.57 = 28,749 : x
  2. Step 2: Convert to fraction form
    87,913.43/131,856.57 = 28,749/x
  3. Step 3: Cross multiply
    87,913.43x = 131,856.57 × 28,749
  4. Step 4: Simplify right side
    87,913.43x = 3,790,744,530.93
  5. Step 5: Solve for x
    x = 3,790,744,530.93/87,913.43
  6. Step 6: Final answer
    x = 43,119.06

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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.