Home / 68,918.20-103,176.54-51,227.24

Finding the Fourth Proportional to 68,918.20, 103,176.54 and 51,227.24

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Solution

The fourth proportional to 68,918.20, 103,176.54 and 51,227.24 is: 76,691.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,918.20 : 103,176.54 = 51,227.24 : x
  2. Step 2: Convert to fraction form
    68,918.20/103,176.54 = 51,227.24/x
  3. Step 3: Cross multiply
    68,918.20x = 103,176.54 × 51,227.24
  4. Step 4: Simplify right side
    68,918.20x = 5,285,449,376.95
  5. Step 5: Solve for x
    x = 5,285,449,376.95/68,918.20
  6. Step 6: Final answer
    x = 76,691.63

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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.