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Finding the Fourth Proportional to 68,676.64, 94,757.52 and 38,868.64

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Solution

The fourth proportional to 68,676.64, 94,757.52 and 38,868.64 is: 53,629.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,676.64 : 94,757.52 = 38,868.64 : x
  2. Step 2: Convert to fraction form
    68,676.64/94,757.52 = 38,868.64/x
  3. Step 3: Cross multiply
    68,676.64x = 94,757.52 × 38,868.64
  4. Step 4: Simplify right side
    68,676.64x = 3,683,095,932.17
  5. Step 5: Solve for x
    x = 3,683,095,932.17/68,676.64
  6. Step 6: Final answer
    x = 53,629.53

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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.