Home / 80,778.16-121,191.97-41,363.18

Finding the Fourth Proportional to 80,778.16, 121,191.97 and 41,363.18

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Solution

The fourth proportional to 80,778.16, 121,191.97 and 41,363.18 is: 62,057.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,778.16 : 121,191.97 = 41,363.18 : x
  2. Step 2: Convert to fraction form
    80,778.16/121,191.97 = 41,363.18/x
  3. Step 3: Cross multiply
    80,778.16x = 121,191.97 × 41,363.18
  4. Step 4: Simplify right side
    80,778.16x = 5,012,885,269.66
  5. Step 5: Solve for x
    x = 5,012,885,269.66/80,778.16
  6. Step 6: Final answer
    x = 62,057.43

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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.