Home / 87,968.72-121,413.11-50,242.97

Finding the Fourth Proportional to 87,968.72, 121,413.11 and 50,242.97

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Solution

The fourth proportional to 87,968.72, 121,413.11 and 50,242.97 is: 69,344.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,968.72 : 121,413.11 = 50,242.97 : x
  2. Step 2: Convert to fraction form
    87,968.72/121,413.11 = 50,242.97/x
  3. Step 3: Cross multiply
    87,968.72x = 121,413.11 × 50,242.97
  4. Step 4: Simplify right side
    87,968.72x = 6,100,155,295.65
  5. Step 5: Solve for x
    x = 6,100,155,295.65/87,968.72
  6. Step 6: Final answer
    x = 69,344.59

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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.