Home / 87,486.26-131,250.23-28,321.93

Finding the Fourth Proportional to 87,486.26, 131,250.23 and 28,321.93

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Solution

The fourth proportional to 87,486.26, 131,250.23 and 28,321.93 is: 42,489.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,486.26 : 131,250.23 = 28,321.93 : x
  2. Step 2: Convert to fraction form
    87,486.26/131,250.23 = 28,321.93/x
  3. Step 3: Cross multiply
    87,486.26x = 131,250.23 × 28,321.93
  4. Step 4: Simplify right side
    87,486.26x = 3,717,259,826.54
  5. Step 5: Solve for x
    x = 3,717,259,826.54/87,486.26
  6. Step 6: Final answer
    x = 42,489.64

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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.