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Finding the Fourth Proportional to 80,481.48, 110,991.72 and 50,269.56

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Solution

The fourth proportional to 80,481.48, 110,991.72 and 50,269.56 is: 69,326.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,481.48 : 110,991.72 = 50,269.56 : x
  2. Step 2: Convert to fraction form
    80,481.48/110,991.72 = 50,269.56/x
  3. Step 3: Cross multiply
    80,481.48x = 110,991.72 × 50,269.56
  4. Step 4: Simplify right side
    80,481.48x = 5,579,504,928.04
  5. Step 5: Solve for x
    x = 5,579,504,928.04/80,481.48
  6. Step 6: Final answer
    x = 69,326.57

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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.