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Finding the Fourth Proportional to 69,630.62, 96,040.62 and 63,906.56

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Solution

The fourth proportional to 69,630.62, 96,040.62 and 63,906.56 is: 88,145.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,630.62 : 96,040.62 = 63,906.56 : x
  2. Step 2: Convert to fraction form
    69,630.62/96,040.62 = 63,906.56/x
  3. Step 3: Cross multiply
    69,630.62x = 96,040.62 × 63,906.56
  4. Step 4: Simplify right side
    69,630.62x = 6,137,625,644.47
  5. Step 5: Solve for x
    x = 6,137,625,644.47/69,630.62
  6. Step 6: Final answer
    x = 88,145.50

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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.