Home / 87,972.73-131,957.25-21,413.23

Finding the Fourth Proportional to 87,972.73, 131,957.25 and 21,413.23

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Solution

The fourth proportional to 87,972.73, 131,957.25 and 21,413.23 is: 32,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,972.73 : 131,957.25 = 21,413.23 : x
  2. Step 2: Convert to fraction form
    87,972.73/131,957.25 = 21,413.23/x
  3. Step 3: Cross multiply
    87,972.73x = 131,957.25 × 21,413.23
  4. Step 4: Simplify right side
    87,972.73x = 2,825,630,944.42
  5. Step 5: Solve for x
    x = 2,825,630,944.42/87,972.73
  6. Step 6: Final answer
    x = 32,119.40

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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.