Home / 81,983.88-122,698.07-50,413.95

Finding the Fourth Proportional to 81,983.88, 122,698.07 and 50,413.95

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Solution

The fourth proportional to 81,983.88, 122,698.07 and 50,413.95 is: 75,450.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,983.88 : 122,698.07 = 50,413.95 : x
  2. Step 2: Convert to fraction form
    81,983.88/122,698.07 = 50,413.95/x
  3. Step 3: Cross multiply
    81,983.88x = 122,698.07 × 50,413.95
  4. Step 4: Simplify right side
    81,983.88x = 6,185,694,366.08
  5. Step 5: Solve for x
    x = 6,185,694,366.08/81,983.88
  6. Step 6: Final answer
    x = 75,450.13

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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.