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Finding the Fourth Proportional to 80,191.92, 110,613.24 and 55,055.28

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Solution

The fourth proportional to 80,191.92, 110,613.24 and 55,055.28 is: 75,940.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,191.92 : 110,613.24 = 55,055.28 : x
  2. Step 2: Convert to fraction form
    80,191.92/110,613.24 = 55,055.28/x
  3. Step 3: Cross multiply
    80,191.92x = 110,613.24 × 55,055.28
  4. Step 4: Simplify right side
    80,191.92x = 6,089,842,899.91
  5. Step 5: Solve for x
    x = 6,089,842,899.91/80,191.92
  6. Step 6: Final answer
    x = 75,940.85

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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.