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Finding the Fourth Proportional to 80,366.60, 120,549.89 and 27,054.10

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Solution

The fourth proportional to 80,366.60, 120,549.89 and 27,054.10 is: 40,581.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,366.60 : 120,549.89 = 27,054.10 : x
  2. Step 2: Convert to fraction form
    80,366.60/120,549.89 = 27,054.10/x
  3. Step 3: Cross multiply
    80,366.60x = 120,549.89 × 27,054.10
  4. Step 4: Simplify right side
    80,366.60x = 3,261,368,779.05
  5. Step 5: Solve for x
    x = 3,261,368,779.05/80,366.60
  6. Step 6: Final answer
    x = 40,581.15

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Double scale
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Similar ratio
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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.