Home / 87,936.21-131,903.11-21,376.14

Finding the Fourth Proportional to 87,936.21, 131,903.11 and 21,376.14

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Solution

The fourth proportional to 87,936.21, 131,903.11 and 21,376.14 is: 32,063.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,936.21 : 131,903.11 = 21,376.14 : x
  2. Step 2: Convert to fraction form
    87,936.21/131,903.11 = 21,376.14/x
  3. Step 3: Cross multiply
    87,936.21x = 131,903.11 × 21,376.14
  4. Step 4: Simplify right side
    87,936.21x = 2,819,579,345.80
  5. Step 5: Solve for x
    x = 2,819,579,345.80/87,936.21
  6. Step 6: Final answer
    x = 32,063.92

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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.