Home / 69,712.25-104,568.71-17,121.74

Finding the Fourth Proportional to 69,712.25, 104,568.71 and 17,121.74

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Solution

The fourth proportional to 69,712.25, 104,568.71 and 17,121.74 is: 25,682.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,712.25 : 104,568.71 = 17,121.74 : x
  2. Step 2: Convert to fraction form
    69,712.25/104,568.71 = 17,121.74/x
  3. Step 3: Cross multiply
    69,712.25x = 104,568.71 × 17,121.74
  4. Step 4: Simplify right side
    69,712.25x = 1,790,397,656.30
  5. Step 5: Solve for x
    x = 1,790,397,656.30/69,712.25
  6. Step 6: Final answer
    x = 25,682.69

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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.