Home / 87,972.26-131,956.55-21,412.76

Finding the Fourth Proportional to 87,972.26, 131,956.55 and 21,412.76

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Solution

The fourth proportional to 87,972.26, 131,956.55 and 21,412.76 is: 32,118.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,972.26 : 131,956.55 = 21,412.76 : x
  2. Step 2: Convert to fraction form
    87,972.26/131,956.55 = 21,412.76/x
  3. Step 3: Cross multiply
    87,972.26x = 131,956.55 × 21,412.76
  4. Step 4: Simplify right side
    87,972.26x = 2,825,553,935.58
  5. Step 5: Solve for x
    x = 2,825,553,935.58/87,972.26
  6. Step 6: Final answer
    x = 32,118.69

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1.5x scale

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.