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Finding the Fourth Proportional to 80,189.92, 110,610.48 and 55,053.28

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Solution

The fourth proportional to 80,189.92, 110,610.48 and 55,053.28 is: 75,938.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,189.92 : 110,610.48 = 55,053.28 : x
  2. Step 2: Convert to fraction form
    80,189.92/110,610.48 = 55,053.28/x
  3. Step 3: Cross multiply
    80,189.92x = 110,610.48 × 55,053.28
  4. Step 4: Simplify right side
    80,189.92x = 6,089,469,726.37
  5. Step 5: Solve for x
    x = 6,089,469,726.37/80,189.92
  6. Step 6: Final answer
    x = 75,938.09

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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.