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Finding the Fourth Proportional to 68,999.85, 95,229.88 and 38,787.66

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Solution

The fourth proportional to 68,999.85, 95,229.88 and 38,787.66 is: 53,532.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,999.85 : 95,229.88 = 38,787.66 : x
  2. Step 2: Convert to fraction form
    68,999.85/95,229.88 = 38,787.66/x
  3. Step 3: Cross multiply
    68,999.85x = 95,229.88 × 38,787.66
  4. Step 4: Simplify right side
    68,999.85x = 3,693,744,110.31
  5. Step 5: Solve for x
    x = 3,693,744,110.31/68,999.85
  6. Step 6: Final answer
    x = 53,532.64

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1.5x scale

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.