Home / 45,217.60-67,768.80-32,891.20

Finding the Fourth Proportional to 45,217.60, 67,768.80 and 32,891.20

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Solution

The fourth proportional to 45,217.60, 67,768.80 and 32,891.20 is: 49,294.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,217.60 : 67,768.80 = 32,891.20 : x
  2. Step 2: Convert to fraction form
    45,217.60/67,768.80 = 32,891.20/x
  3. Step 3: Cross multiply
    45,217.60x = 67,768.80 × 32,891.20
  4. Step 4: Simplify right side
    45,217.60x = 2,228,997,154.56
  5. Step 5: Solve for x
    x = 2,228,997,154.56/45,217.60
  6. Step 6: Final answer
    x = 49,294.90

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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.