Home / 80,654.16-120,994.20-33,909.60

Finding the Fourth Proportional to 80,654.16, 120,994.20 and 33,909.60

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Solution

The fourth proportional to 80,654.16, 120,994.20 and 33,909.60 is: 50,869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,654.16 : 120,994.20 = 33,909.60 : x
  2. Step 2: Convert to fraction form
    80,654.16/120,994.20 = 33,909.60/x
  3. Step 3: Cross multiply
    80,654.16x = 120,994.20 × 33,909.60
  4. Step 4: Simplify right side
    80,654.16x = 4,102,864,924.32
  5. Step 5: Solve for x
    x = 4,102,864,924.32/80,654.16
  6. Step 6: Final answer
    x = 50,869.85

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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.