Home / 88,255.32-121,793.09-47,969.12

Finding the Fourth Proportional to 88,255.32, 121,793.09 and 47,969.12

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Solution

The fourth proportional to 88,255.32, 121,793.09 and 47,969.12 is: 66,197.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,255.32 : 121,793.09 = 47,969.12 : x
  2. Step 2: Convert to fraction form
    88,255.32/121,793.09 = 47,969.12/x
  3. Step 3: Cross multiply
    88,255.32x = 121,793.09 × 47,969.12
  4. Step 4: Simplify right side
    88,255.32x = 5,842,306,500.57
  5. Step 5: Solve for x
    x = 5,842,306,500.57/88,255.32
  6. Step 6: Final answer
    x = 66,197.78

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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.