Home / 79,207.38-109,279.26-45,191.44

Finding the Fourth Proportional to 79,207.38, 109,279.26 and 45,191.44

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Solution

The fourth proportional to 79,207.38, 109,279.26 and 45,191.44 is: 62,348.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,207.38 : 109,279.26 = 45,191.44 : x
  2. Step 2: Convert to fraction form
    79,207.38/109,279.26 = 45,191.44/x
  3. Step 3: Cross multiply
    79,207.38x = 109,279.26 × 45,191.44
  4. Step 4: Simplify right side
    79,207.38x = 4,938,487,121.53
  5. Step 5: Solve for x
    x = 4,938,487,121.53/79,207.38
  6. Step 6: Final answer
    x = 62,348.83

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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.