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Finding the Fourth Proportional to 80,202.70, 120,302.67 and 27,611.02

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Solution

The fourth proportional to 80,202.70, 120,302.67 and 27,611.02 is: 41,416.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,202.70 : 120,302.67 = 27,611.02 : x
  2. Step 2: Convert to fraction form
    80,202.70/120,302.67 = 27,611.02/x
  3. Step 3: Cross multiply
    80,202.70x = 120,302.67 × 27,611.02
  4. Step 4: Simplify right side
    80,202.70x = 3,321,679,427.42
  5. Step 5: Solve for x
    x = 3,321,679,427.42/80,202.70
  6. Step 6: Final answer
    x = 41,416.05

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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.