Home / 68,640.20-102,960.30-29,198.60

Finding the Fourth Proportional to 68,640.20, 102,960.30 and 29,198.60

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Solution

The fourth proportional to 68,640.20, 102,960.30 and 29,198.60 is: 43,797.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,640.20 : 102,960.30 = 29,198.60 : x
  2. Step 2: Convert to fraction form
    68,640.20/102,960.30 = 29,198.60/x
  3. Step 3: Cross multiply
    68,640.20x = 102,960.30 × 29,198.60
  4. Step 4: Simplify right side
    68,640.20x = 3,006,296,615.58
  5. Step 5: Solve for x
    x = 3,006,296,615.58/68,640.20
  6. Step 6: Final answer
    x = 43,797.90

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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.