Home / 68,723.44-103,105.14-28,761.28

Finding the Fourth Proportional to 68,723.44, 103,105.14 and 28,761.28

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Solution

The fourth proportional to 68,723.44, 103,105.14 and 28,761.28 is: 43,150.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,723.44 : 103,105.14 = 28,761.28 : x
  2. Step 2: Convert to fraction form
    68,723.44/103,105.14 = 28,761.28/x
  3. Step 3: Cross multiply
    68,723.44x = 103,105.14 × 28,761.28
  4. Step 4: Simplify right side
    68,723.44x = 2,965,435,800.98
  5. Step 5: Solve for x
    x = 2,965,435,800.98/68,723.44
  6. Step 6: Final answer
    x = 43,150.28

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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.