Home / 87,823.20-131,734.26-28,658.91

Finding the Fourth Proportional to 87,823.20, 131,734.26 and 28,658.91

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Solution

The fourth proportional to 87,823.20, 131,734.26 and 28,658.91 is: 42,988.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,823.20 : 131,734.26 = 28,658.91 : x
  2. Step 2: Convert to fraction form
    87,823.20/131,734.26 = 28,658.91/x
  3. Step 3: Cross multiply
    87,823.20x = 131,734.26 × 28,658.91
  4. Step 4: Simplify right side
    87,823.20x = 3,775,360,301.26
  5. Step 5: Solve for x
    x = 3,775,360,301.26/87,823.20
  6. Step 6: Final answer
    x = 42,988.19

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1.5x scale

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.