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Finding the Fourth Proportional to 80,445.60, 120,610.80 and 33,674.40

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Solution

The fourth proportional to 80,445.60, 120,610.80 and 33,674.40 is: 50,487.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,445.60 : 120,610.80 = 33,674.40 : x
  2. Step 2: Convert to fraction form
    80,445.60/120,610.80 = 33,674.40/x
  3. Step 3: Cross multiply
    80,445.60x = 120,610.80 × 33,674.40
  4. Step 4: Simplify right side
    80,445.60x = 4,061,496,323.52
  5. Step 5: Solve for x
    x = 4,061,496,323.52/80,445.60
  6. Step 6: Final answer
    x = 50,487.49

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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.