Home / 68,772.21-103,193.85-29,318.73

Finding the Fourth Proportional to 68,772.21, 103,193.85 and 29,318.73

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Solution

The fourth proportional to 68,772.21, 103,193.85 and 29,318.73 is: 43,993.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,772.21 : 103,193.85 = 29,318.73 : x
  2. Step 2: Convert to fraction form
    68,772.21/103,193.85 = 29,318.73/x
  3. Step 3: Cross multiply
    68,772.21x = 103,193.85 × 29,318.73
  4. Step 4: Simplify right side
    68,772.21x = 3,025,512,625.81
  5. Step 5: Solve for x
    x = 3,025,512,625.81/68,772.21
  6. Step 6: Final answer
    x = 43,993.24

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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.