Home / 87,972.53-131,956.92-21,413.03

Finding the Fourth Proportional to 87,972.53, 131,956.92 and 21,413.03

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Solution

The fourth proportional to 87,972.53, 131,956.92 and 21,413.03 is: 32,119.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,972.53 : 131,956.92 = 21,413.03 : x
  2. Step 2: Convert to fraction form
    87,972.53/131,956.92 = 21,413.03/x
  3. Step 3: Cross multiply
    87,972.53x = 131,956.92 × 21,413.03
  4. Step 4: Simplify right side
    87,972.53x = 2,825,596,826.88
  5. Step 5: Solve for x
    x = 2,825,596,826.88/87,972.53
  6. Step 6: Final answer
    x = 32,119.08

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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.