Home / 83,891.22-125,836.15-39,493.75

Finding the Fourth Proportional to 83,891.22, 125,836.15 and 39,493.75

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Solution

The fourth proportional to 83,891.22, 125,836.15 and 39,493.75 is: 59,240.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,891.22 : 125,836.15 = 39,493.75 : x
  2. Step 2: Convert to fraction form
    83,891.22/125,836.15 = 39,493.75/x
  3. Step 3: Cross multiply
    83,891.22x = 125,836.15 × 39,493.75
  4. Step 4: Simplify right side
    83,891.22x = 4,969,741,449.06
  5. Step 5: Solve for x
    x = 4,969,741,449.06/83,891.22
  6. Step 6: Final answer
    x = 59,240.30

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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.