Home / 68,940.24-103,419.26-24,579.78

Finding the Fourth Proportional to 68,940.24, 103,419.26 and 24,579.78

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Solution

The fourth proportional to 68,940.24, 103,419.26 and 24,579.78 is: 36,872.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,940.24 : 103,419.26 = 24,579.78 : x
  2. Step 2: Convert to fraction form
    68,940.24/103,419.26 = 24,579.78/x
  3. Step 3: Cross multiply
    68,940.24x = 103,419.26 × 24,579.78
  4. Step 4: Simplify right side
    68,940.24x = 2,542,022,658.56
  5. Step 5: Solve for x
    x = 2,542,022,658.56/68,940.24
  6. Step 6: Final answer
    x = 36,872.84

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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.