Home / 87,993.24-131,989.92-21,433

Finding the Fourth Proportional to 87,993.24, 131,989.92 and 21,433

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Solution

The fourth proportional to 87,993.24, 131,989.92 and 21,433 is: 32,149.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,993.24 : 131,989.92 = 21,433 : x
  2. Step 2: Convert to fraction form
    87,993.24/131,989.92 = 21,433/x
  3. Step 3: Cross multiply
    87,993.24x = 131,989.92 × 21,433
  4. Step 4: Simplify right side
    87,993.24x = 2,828,939,955.36
  5. Step 5: Solve for x
    x = 2,828,939,955.36/87,993.24
  6. Step 6: Final answer
    x = 32,149.51

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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.