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Finding the Fourth Proportional to 80,571.96, 111,243.78 and 48,796.20

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Solution

The fourth proportional to 80,571.96, 111,243.78 and 48,796.20 is: 67,371.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,571.96 : 111,243.78 = 48,796.20 : x
  2. Step 2: Convert to fraction form
    80,571.96/111,243.78 = 48,796.20/x
  3. Step 3: Cross multiply
    80,571.96x = 111,243.78 × 48,796.20
  4. Step 4: Simplify right side
    80,571.96x = 5,428,273,737.64
  5. Step 5: Solve for x
    x = 5,428,273,737.64/80,571.96
  6. Step 6: Final answer
    x = 67,371.75

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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.