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Finding the Fourth Proportional to 80,125.50, 120,143.90 and 32,773.84

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Solution

The fourth proportional to 80,125.50, 120,143.90 and 32,773.84 is: 49,142.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,125.50 : 120,143.90 = 32,773.84 : x
  2. Step 2: Convert to fraction form
    80,125.50/120,143.90 = 32,773.84/x
  3. Step 3: Cross multiply
    80,125.50x = 120,143.90 × 32,773.84
  4. Step 4: Simplify right side
    80,125.50x = 3,937,576,955.58
  5. Step 5: Solve for x
    x = 3,937,576,955.58/80,125.50
  6. Step 6: Final answer
    x = 49,142.62

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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.