Home / 68,851.20-103,193.75-35,553.12

Finding the Fourth Proportional to 68,851.20, 103,193.75 and 35,553.12

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Solution

The fourth proportional to 68,851.20, 103,193.75 and 35,553.12 is: 53,286.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,851.20 : 103,193.75 = 35,553.12 : x
  2. Step 2: Convert to fraction form
    68,851.20/103,193.75 = 35,553.12/x
  3. Step 3: Cross multiply
    68,851.20x = 103,193.75 × 35,553.12
  4. Step 4: Simplify right side
    68,851.20x = 3,668,859,777.00
  5. Step 5: Solve for x
    x = 3,668,859,777.00/68,851.20
  6. Step 6: Final answer
    x = 53,286.79

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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.