Home / 80,786.92-111,499.30-47,246.44

Finding the Fourth Proportional to 80,786.92, 111,499.30 and 47,246.44

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Solution

The fourth proportional to 80,786.92, 111,499.30 and 47,246.44 is: 65,207.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,786.92 : 111,499.30 = 47,246.44 : x
  2. Step 2: Convert to fraction form
    80,786.92/111,499.30 = 47,246.44/x
  3. Step 3: Cross multiply
    80,786.92x = 111,499.30 × 47,246.44
  4. Step 4: Simplify right side
    80,786.92x = 5,267,944,987.49
  5. Step 5: Solve for x
    x = 5,267,944,987.49/80,786.92
  6. Step 6: Final answer
    x = 65,207.89

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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.