Home / 83,755.74-115,591.05-47,950.86

Finding the Fourth Proportional to 83,755.74, 115,591.05 and 47,950.86

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Solution

The fourth proportional to 83,755.74, 115,591.05 and 47,950.86 is: 66,176.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,755.74 : 115,591.05 = 47,950.86 : x
  2. Step 2: Convert to fraction form
    83,755.74/115,591.05 = 47,950.86/x
  3. Step 3: Cross multiply
    83,755.74x = 115,591.05 × 47,950.86
  4. Step 4: Simplify right side
    83,755.74x = 5,542,690,255.80
  5. Step 5: Solve for x
    x = 5,542,690,255.80/83,755.74
  6. Step 6: Final answer
    x = 66,176.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.