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Finding the Fourth Proportional to 80,378.60, 120,583.02 and 32,350.88

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Solution

The fourth proportional to 80,378.60, 120,583.02 and 32,350.88 is: 48,532.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,378.60 : 120,583.02 = 32,350.88 : x
  2. Step 2: Convert to fraction form
    80,378.60/120,583.02 = 32,350.88/x
  3. Step 3: Cross multiply
    80,378.60x = 120,583.02 × 32,350.88
  4. Step 4: Simplify right side
    80,378.60x = 3,900,966,810.06
  5. Step 5: Solve for x
    x = 3,900,966,810.06/80,378.60
  6. Step 6: Final answer
    x = 48,532.41

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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.