Home / 87,693.52-131,559.75-40,920.88

Finding the Fourth Proportional to 87,693.52, 131,559.75 and 40,920.88

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Solution

The fourth proportional to 87,693.52, 131,559.75 and 40,920.88 is: 61,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,693.52 : 131,559.75 = 40,920.88 : x
  2. Step 2: Convert to fraction form
    87,693.52/131,559.75 = 40,920.88/x
  3. Step 3: Cross multiply
    87,693.52x = 131,559.75 × 40,920.88
  4. Step 4: Simplify right side
    87,693.52x = 5,383,540,413.68
  5. Step 5: Solve for x
    x = 5,383,540,413.68/87,693.52
  6. Step 6: Final answer
    x = 61,390.40

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1.5x scale

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.