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Finding the Fourth Proportional to 69,464.80, 104,171.60 and 22,719.20

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Solution

The fourth proportional to 69,464.80, 104,171.60 and 22,719.20 is: 34,070.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,464.80 : 104,171.60 = 22,719.20 : x
  2. Step 2: Convert to fraction form
    69,464.80/104,171.60 = 22,719.20/x
  3. Step 3: Cross multiply
    69,464.80x = 104,171.60 × 22,719.20
  4. Step 4: Simplify right side
    69,464.80x = 2,366,695,414.72
  5. Step 5: Solve for x
    x = 2,366,695,414.72/69,464.80
  6. Step 6: Final answer
    x = 34,070.43

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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.