Home / 68,529.62-102,809.56-29,120.42

Finding the Fourth Proportional to 68,529.62, 102,809.56 and 29,120.42

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Solution

The fourth proportional to 68,529.62, 102,809.56 and 29,120.42 is: 43,687.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,529.62 : 102,809.56 = 29,120.42 : x
  2. Step 2: Convert to fraction form
    68,529.62/102,809.56 = 29,120.42/x
  3. Step 3: Cross multiply
    68,529.62x = 102,809.56 × 29,120.42
  4. Step 4: Simplify right side
    68,529.62x = 2,993,857,567.22
  5. Step 5: Solve for x
    x = 2,993,857,567.22/68,529.62
  6. Step 6: Final answer
    x = 43,687.06

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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.