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Finding the Fourth Proportional to 68,576.76, 94,654.44 and 40,301.28

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Solution

The fourth proportional to 68,576.76, 94,654.44 and 40,301.28 is: 55,626.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,576.76 : 94,654.44 = 40,301.28 : x
  2. Step 2: Convert to fraction form
    68,576.76/94,654.44 = 40,301.28/x
  3. Step 3: Cross multiply
    68,576.76x = 94,654.44 × 40,301.28
  4. Step 4: Simplify right side
    68,576.76x = 3,814,695,089.68
  5. Step 5: Solve for x
    x = 3,814,695,089.68/68,576.76
  6. Step 6: Final answer
    x = 55,626.65

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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.