Home / 68,979.18-95,190.77-38,763.85

Finding the Fourth Proportional to 68,979.18, 95,190.77 and 38,763.85

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Solution

The fourth proportional to 68,979.18, 95,190.77 and 38,763.85 is: 53,493.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,979.18 : 95,190.77 = 38,763.85 : x
  2. Step 2: Convert to fraction form
    68,979.18/95,190.77 = 38,763.85/x
  3. Step 3: Cross multiply
    68,979.18x = 95,190.77 × 38,763.85
  4. Step 4: Simplify right side
    68,979.18x = 3,689,960,549.03
  5. Step 5: Solve for x
    x = 3,689,960,549.03/68,979.18
  6. Step 6: Final answer
    x = 53,493.83

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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.