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Finding the Fourth Proportional to 80,706.60, 121,103.10 and 33,964.20

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Solution

The fourth proportional to 80,706.60, 121,103.10 and 33,964.20 is: 50,964.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,706.60 : 121,103.10 = 33,964.20 : x
  2. Step 2: Convert to fraction form
    80,706.60/121,103.10 = 33,964.20/x
  3. Step 3: Cross multiply
    80,706.60x = 121,103.10 × 33,964.20
  4. Step 4: Simplify right side
    80,706.60x = 4,113,169,909.02
  5. Step 5: Solve for x
    x = 4,113,169,909.02/80,706.60
  6. Step 6: Final answer
    x = 50,964.48

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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.