Home / 83,272.70-124,872.60-33,336.20

Finding the Fourth Proportional to 83,272.70, 124,872.60 and 33,336.20

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Solution

The fourth proportional to 83,272.70, 124,872.60 and 33,336.20 is: 49,989.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,272.70 : 124,872.60 = 33,336.20 : x
  2. Step 2: Convert to fraction form
    83,272.70/124,872.60 = 33,336.20/x
  3. Step 3: Cross multiply
    83,272.70x = 124,872.60 × 33,336.20
  4. Step 4: Simplify right side
    83,272.70x = 4,162,777,968.12
  5. Step 5: Solve for x
    x = 4,162,777,968.12/83,272.70
  6. Step 6: Final answer
    x = 49,989.71

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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.