Home / 88,120.28-121,608.05-52,310.43

Finding the Fourth Proportional to 88,120.28, 121,608.05 and 52,310.43

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Solution

The fourth proportional to 88,120.28, 121,608.05 and 52,310.43 is: 72,189.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,120.28 : 121,608.05 = 52,310.43 : x
  2. Step 2: Convert to fraction form
    88,120.28/121,608.05 = 52,310.43/x
  3. Step 3: Cross multiply
    88,120.28x = 121,608.05 × 52,310.43
  4. Step 4: Simplify right side
    88,120.28x = 6,361,369,125.41
  5. Step 5: Solve for x
    x = 6,361,369,125.41/88,120.28
  6. Step 6: Final answer
    x = 72,189.61

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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.