Home / 87,968.80-121,413.20-50,243.05

Finding the Fourth Proportional to 87,968.80, 121,413.20 and 50,243.05

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Solution

The fourth proportional to 87,968.80, 121,413.20 and 50,243.05 is: 69,344.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,968.80 : 121,413.20 = 50,243.05 : x
  2. Step 2: Convert to fraction form
    87,968.80/121,413.20 = 50,243.05/x
  3. Step 3: Cross multiply
    87,968.80x = 121,413.20 × 50,243.05
  4. Step 4: Simplify right side
    87,968.80x = 6,100,169,227.04
  5. Step 5: Solve for x
    x = 6,100,169,227.04/87,968.80
  6. Step 6: Final answer
    x = 69,344.69

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1.5x scale

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.