Home / 87,901.98-131,853.21-21,341.82

Finding the Fourth Proportional to 87,901.98, 131,853.21 and 21,341.82

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Solution

The fourth proportional to 87,901.98, 131,853.21 and 21,341.82 is: 32,012.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,901.98 : 131,853.21 = 21,341.82 : x
  2. Step 2: Convert to fraction form
    87,901.98/131,853.21 = 21,341.82/x
  3. Step 3: Cross multiply
    87,901.98x = 131,853.21 × 21,341.82
  4. Step 4: Simplify right side
    87,901.98x = 2,813,987,474.24
  5. Step 5: Solve for x
    x = 2,813,987,474.24/87,901.98
  6. Step 6: Final answer
    x = 32,012.79

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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.