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Finding the Fourth Proportional to 68,654.75, 94,745 and 38,846.75

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Solution

The fourth proportional to 68,654.75, 94,745 and 38,846.75 is: 53,609.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,654.75 : 94,745 = 38,846.75 : x
  2. Step 2: Convert to fraction form
    68,654.75/94,745 = 38,846.75/x
  3. Step 3: Cross multiply
    68,654.75x = 94,745 × 38,846.75
  4. Step 4: Simplify right side
    68,654.75x = 3,680,535,328.75
  5. Step 5: Solve for x
    x = 3,680,535,328.75/68,654.75
  6. Step 6: Final answer
    x = 53,609.33

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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.