Home / 80,935.08-121,413.69-27,612.73

Finding the Fourth Proportional to 80,935.08, 121,413.69 and 27,612.73

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Solution

The fourth proportional to 80,935.08, 121,413.69 and 27,612.73 is: 41,422.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,935.08 : 121,413.69 = 27,612.73 : x
  2. Step 2: Convert to fraction form
    80,935.08/121,413.69 = 27,612.73/x
  3. Step 3: Cross multiply
    80,935.08x = 121,413.69 × 27,612.73
  4. Step 4: Simplify right side
    80,935.08x = 3,352,563,440.27
  5. Step 5: Solve for x
    x = 3,352,563,440.27/80,935.08
  6. Step 6: Final answer
    x = 41,422.87

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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.