Home / 67,012.20-100,403.10-43,626.60

Finding the Fourth Proportional to 67,012.20, 100,403.10 and 43,626.60

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Solution

The fourth proportional to 67,012.20, 100,403.10 and 43,626.60 is: 65,364.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,012.20 : 100,403.10 = 43,626.60 : x
  2. Step 2: Convert to fraction form
    67,012.20/100,403.10 = 43,626.60/x
  3. Step 3: Cross multiply
    67,012.20x = 100,403.10 × 43,626.60
  4. Step 4: Simplify right side
    67,012.20x = 4,380,245,882.46
  5. Step 5: Solve for x
    x = 4,380,245,882.46/67,012.20
  6. Step 6: Final answer
    x = 65,364.90

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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.