Home / 68,836.20-103,242-18,235.60

Finding the Fourth Proportional to 68,836.20, 103,242 and 18,235.60

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Solution

The fourth proportional to 68,836.20, 103,242 and 18,235.60 is: 27,350.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,836.20 : 103,242 = 18,235.60 : x
  2. Step 2: Convert to fraction form
    68,836.20/103,242 = 18,235.60/x
  3. Step 3: Cross multiply
    68,836.20x = 103,242 × 18,235.60
  4. Step 4: Simplify right side
    68,836.20x = 1,882,679,815.20
  5. Step 5: Solve for x
    x = 1,882,679,815.20/68,836.20
  6. Step 6: Final answer
    x = 27,350.14

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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.