Home / 68,921.28-103,380.72-37,739.52

Finding the Fourth Proportional to 68,921.28, 103,380.72 and 37,739.52

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Solution

The fourth proportional to 68,921.28, 103,380.72 and 37,739.52 is: 56,608.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,921.28 : 103,380.72 = 37,739.52 : x
  2. Step 2: Convert to fraction form
    68,921.28/103,380.72 = 37,739.52/x
  3. Step 3: Cross multiply
    68,921.28x = 103,380.72 × 37,739.52
  4. Step 4: Simplify right side
    68,921.28x = 3,901,538,750.05
  5. Step 5: Solve for x
    x = 3,901,538,750.05/68,921.28
  6. Step 6: Final answer
    x = 56,608.62

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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.