Home / 68,769.12-103,156.56-22,028.64

Finding the Fourth Proportional to 68,769.12, 103,156.56 and 22,028.64

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Solution

The fourth proportional to 68,769.12, 103,156.56 and 22,028.64 is: 33,043.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,769.12 : 103,156.56 = 22,028.64 : x
  2. Step 2: Convert to fraction form
    68,769.12/103,156.56 = 22,028.64/x
  3. Step 3: Cross multiply
    68,769.12x = 103,156.56 × 22,028.64
  4. Step 4: Simplify right side
    68,769.12x = 2,272,398,723.88
  5. Step 5: Solve for x
    x = 2,272,398,723.88/68,769.12
  6. Step 6: Final answer
    x = 33,043.88

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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.