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Finding the Fourth Proportional to 61,165.80, 91,744.25 and 16,788.74

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Solution

The fourth proportional to 61,165.80, 91,744.25 and 16,788.74 is: 25,181.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,165.80 : 91,744.25 = 16,788.74 : x
  2. Step 2: Convert to fraction form
    61,165.80/91,744.25 = 16,788.74/x
  3. Step 3: Cross multiply
    61,165.80x = 91,744.25 × 16,788.74
  4. Step 4: Simplify right side
    61,165.80x = 1,540,269,817.08
  5. Step 5: Solve for x
    x = 1,540,269,817.08/61,165.80
  6. Step 6: Final answer
    x = 25,181.88

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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.