Home / 87,862.20-131,806.10-28,700.60

Finding the Fourth Proportional to 87,862.20, 131,806.10 and 28,700.60

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Solution

The fourth proportional to 87,862.20, 131,806.10 and 28,700.60 is: 43,055.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,862.20 : 131,806.10 = 28,700.60 : x
  2. Step 2: Convert to fraction form
    87,862.20/131,806.10 = 28,700.60/x
  3. Step 3: Cross multiply
    87,862.20x = 131,806.10 × 28,700.60
  4. Step 4: Simplify right side
    87,862.20x = 3,782,914,153.66
  5. Step 5: Solve for x
    x = 3,782,914,153.66/87,862.20
  6. Step 6: Final answer
    x = 43,055.08

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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.