Home / 66,517.20-99,808.20-50,716.80

Finding the Fourth Proportional to 66,517.20, 99,808.20 and 50,716.80

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Solution

The fourth proportional to 66,517.20, 99,808.20 and 50,716.80 is: 76,099.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,517.20 : 99,808.20 = 50,716.80 : x
  2. Step 2: Convert to fraction form
    66,517.20/99,808.20 = 50,716.80/x
  3. Step 3: Cross multiply
    66,517.20x = 99,808.20 × 50,716.80
  4. Step 4: Simplify right side
    66,517.20x = 5,061,952,517.76
  5. Step 5: Solve for x
    x = 5,061,952,517.76/66,517.20
  6. Step 6: Final answer
    x = 76,099.90

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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.