Home / 87,965.10-131,947.92-21,405.24

Finding the Fourth Proportional to 87,965.10, 131,947.92 and 21,405.24

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Solution

The fourth proportional to 87,965.10, 131,947.92 and 21,405.24 is: 32,107.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,965.10 : 131,947.92 = 21,405.24 : x
  2. Step 2: Convert to fraction form
    87,965.10/131,947.92 = 21,405.24/x
  3. Step 3: Cross multiply
    87,965.10x = 131,947.92 × 21,405.24
  4. Step 4: Simplify right side
    87,965.10x = 2,824,376,895.10
  5. Step 5: Solve for x
    x = 2,824,376,895.10/87,965.10
  6. Step 6: Final answer
    x = 32,107.93

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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.