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Finding the Fourth Proportional to 88,375, 121,957.52 and 48,631

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Solution

The fourth proportional to 88,375, 121,957.52 and 48,631 is: 67,110.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,375 : 121,957.52 = 48,631 : x
  2. Step 2: Convert to fraction form
    88,375/121,957.52 = 48,631/x
  3. Step 3: Cross multiply
    88,375x = 121,957.52 × 48,631
  4. Step 4: Simplify right side
    88,375x = 5,930,916,155.12
  5. Step 5: Solve for x
    x = 5,930,916,155.12/88,375
  6. Step 6: Final answer
    x = 67,110.79

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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.