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Finding the Fourth Proportional to 80,997.56, 111,786.36 and 47,463.56

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Solution

The fourth proportional to 80,997.56, 111,786.36 and 47,463.56 is: 65,505.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,997.56 : 111,786.36 = 47,463.56 : x
  2. Step 2: Convert to fraction form
    80,997.56/111,786.36 = 47,463.56/x
  3. Step 3: Cross multiply
    80,997.56x = 111,786.36 × 47,463.56
  4. Step 4: Simplify right side
    80,997.56x = 5,305,778,605.04
  5. Step 5: Solve for x
    x = 5,305,778,605.04/80,997.56
  6. Step 6: Final answer
    x = 65,505.41

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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.