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Finding the Fourth Proportional to 53,668.50, 80,517 and 18,608.10

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Solution

The fourth proportional to 53,668.50, 80,517 and 18,608.10 is: 27,917.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,668.50 : 80,517 = 18,608.10 : x
  2. Step 2: Convert to fraction form
    53,668.50/80,517 = 18,608.10/x
  3. Step 3: Cross multiply
    53,668.50x = 80,517 × 18,608.10
  4. Step 4: Simplify right side
    53,668.50x = 1,498,268,387.70
  5. Step 5: Solve for x
    x = 1,498,268,387.70/53,668.50
  6. Step 6: Final answer
    x = 27,917.09

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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.