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Finding the Fourth Proportional to 69,559.92, 95,991 and 39,750

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Solution

The fourth proportional to 69,559.92, 95,991 and 39,750 is: 54,854.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,559.92 : 95,991 = 39,750 : x
  2. Step 2: Convert to fraction form
    69,559.92/95,991 = 39,750/x
  3. Step 3: Cross multiply
    69,559.92x = 95,991 × 39,750
  4. Step 4: Simplify right side
    69,559.92x = 3,815,642,250
  5. Step 5: Solve for x
    x = 3,815,642,250/69,559.92
  6. Step 6: Final answer
    x = 54,854.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.