Home / 69,429.12-104,142.76-16,839.04

Finding the Fourth Proportional to 69,429.12, 104,142.76 and 16,839.04

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Solution

The fourth proportional to 69,429.12, 104,142.76 and 16,839.04 is: 25,258.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,429.12 : 104,142.76 = 16,839.04 : x
  2. Step 2: Convert to fraction form
    69,429.12/104,142.76 = 16,839.04/x
  3. Step 3: Cross multiply
    69,429.12x = 104,142.76 × 16,839.04
  4. Step 4: Simplify right side
    69,429.12x = 1,753,664,101.35
  5. Step 5: Solve for x
    x = 1,753,664,101.35/69,429.12
  6. Step 6: Final answer
    x = 25,258.34

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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.