Home / 87,791.32-131,655.84-31,616.36

Finding the Fourth Proportional to 87,791.32, 131,655.84 and 31,616.36

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Solution

The fourth proportional to 87,791.32, 131,655.84 and 31,616.36 is: 47,413.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,791.32 : 131,655.84 = 31,616.36 : x
  2. Step 2: Convert to fraction form
    87,791.32/131,655.84 = 31,616.36/x
  3. Step 3: Cross multiply
    87,791.32x = 131,655.84 × 31,616.36
  4. Step 4: Simplify right side
    87,791.32x = 4,162,478,433.54
  5. Step 5: Solve for x
    x = 4,162,478,433.54/87,791.32
  6. Step 6: Final answer
    x = 47,413.33

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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.