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Finding the Fourth Proportional to 80,080.56, 120,129.03 and 27,483.21

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Solution

The fourth proportional to 80,080.56, 120,129.03 and 27,483.21 is: 41,227.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,080.56 : 120,129.03 = 27,483.21 : x
  2. Step 2: Convert to fraction form
    80,080.56/120,129.03 = 27,483.21/x
  3. Step 3: Cross multiply
    80,080.56x = 120,129.03 × 27,483.21
  4. Step 4: Simplify right side
    80,080.56x = 3,301,531,358.59
  5. Step 5: Solve for x
    x = 3,301,531,358.59/80,080.56
  6. Step 6: Final answer
    x = 41,227.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.