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Finding the Fourth Proportional to 68,257.44, 102,386.40 and 64,233.60

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Solution

The fourth proportional to 68,257.44, 102,386.40 and 64,233.60 is: 96,350.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,257.44 : 102,386.40 = 64,233.60 : x
  2. Step 2: Convert to fraction form
    68,257.44/102,386.40 = 64,233.60/x
  3. Step 3: Cross multiply
    68,257.44x = 102,386.40 × 64,233.60
  4. Step 4: Simplify right side
    68,257.44x = 6,576,647,063.04
  5. Step 5: Solve for x
    x = 6,576,647,063.04/68,257.44
  6. Step 6: Final answer
    x = 96,350.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.