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Finding the Fourth Proportional to 69,360, 104,067.36 and 36,059.20

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Solution

The fourth proportional to 69,360, 104,067.36 and 36,059.20 is: 54,103.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,360 : 104,067.36 = 36,059.20 : x
  2. Step 2: Convert to fraction form
    69,360/104,067.36 = 36,059.20/x
  3. Step 3: Cross multiply
    69,360x = 104,067.36 × 36,059.20
  4. Step 4: Simplify right side
    69,360x = 3,752,585,747.71
  5. Step 5: Solve for x
    x = 3,752,585,747.71/69,360
  6. Step 6: Final answer
    x = 54,103.02

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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.