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Finding the Fourth Proportional to 68,654.87, 94,745.48 and 38,446.58

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Solution

The fourth proportional to 68,654.87, 94,745.48 and 38,446.58 is: 53,057.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,654.87 : 94,745.48 = 38,446.58 : x
  2. Step 2: Convert to fraction form
    68,654.87/94,745.48 = 38,446.58/x
  3. Step 3: Cross multiply
    68,654.87x = 94,745.48 × 38,446.58
  4. Step 4: Simplify right side
    68,654.87x = 3,642,639,676.46
  5. Step 5: Solve for x
    x = 3,642,639,676.46/68,654.87
  6. Step 6: Final answer
    x = 53,057.27

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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.