Home / 68,618.60-102,932.70-29,171.24

Finding the Fourth Proportional to 68,618.60, 102,932.70 and 29,171.24

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Solution

The fourth proportional to 68,618.60, 102,932.70 and 29,171.24 is: 43,758.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,618.60 : 102,932.70 = 29,171.24 : x
  2. Step 2: Convert to fraction form
    68,618.60/102,932.70 = 29,171.24/x
  3. Step 3: Cross multiply
    68,618.60x = 102,932.70 × 29,171.24
  4. Step 4: Simplify right side
    68,618.60x = 3,002,674,495.55
  5. Step 5: Solve for x
    x = 3,002,674,495.55/68,618.60
  6. Step 6: Final answer
    x = 43,758.90

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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.