Home / 68,621.60-102,932.40-29,168.80

Finding the Fourth Proportional to 68,621.60, 102,932.40 and 29,168.80

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Solution

The fourth proportional to 68,621.60, 102,932.40 and 29,168.80 is: 43,753.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,621.60 : 102,932.40 = 29,168.80 : x
  2. Step 2: Convert to fraction form
    68,621.60/102,932.40 = 29,168.80/x
  3. Step 3: Cross multiply
    68,621.60x = 102,932.40 × 29,168.80
  4. Step 4: Simplify right side
    68,621.60x = 3,002,414,589.12
  5. Step 5: Solve for x
    x = 3,002,414,589.12/68,621.60
  6. Step 6: Final answer
    x = 43,753.20

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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.