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Finding the Fourth Proportional to 57,745, 86,620.02 and 18,305.02

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Solution

The fourth proportional to 57,745, 86,620.02 and 18,305.02 is: 27,458.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,745 : 86,620.02 = 18,305.02 : x
  2. Step 2: Convert to fraction form
    57,745/86,620.02 = 18,305.02/x
  3. Step 3: Cross multiply
    57,745x = 86,620.02 × 18,305.02
  4. Step 4: Simplify right side
    57,745x = 1,585,581,198.50
  5. Step 5: Solve for x
    x = 1,585,581,198.50/57,745
  6. Step 6: Final answer
    x = 27,458.33

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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.