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Finding the Fourth Proportional to 80,081.56, 120,130.53 and 27,484.21

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Solution

The fourth proportional to 80,081.56, 120,130.53 and 27,484.21 is: 41,229.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,081.56 : 120,130.53 = 27,484.21 : x
  2. Step 2: Convert to fraction form
    80,081.56/120,130.53 = 27,484.21/x
  3. Step 3: Cross multiply
    80,081.56x = 120,130.53 × 27,484.21
  4. Step 4: Simplify right side
    80,081.56x = 3,301,692,713.93
  5. Step 5: Solve for x
    x = 3,301,692,713.93/80,081.56
  6. Step 6: Final answer
    x = 41,229.13

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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.