Home / 87,937.70-131,905.36-21,377.64

Finding the Fourth Proportional to 87,937.70, 131,905.36 and 21,377.64

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Solution

The fourth proportional to 87,937.70, 131,905.36 and 21,377.64 is: 32,066.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,937.70 : 131,905.36 = 21,377.64 : x
  2. Step 2: Convert to fraction form
    87,937.70/131,905.36 = 21,377.64/x
  3. Step 3: Cross multiply
    87,937.70x = 131,905.36 × 21,377.64
  4. Step 4: Simplify right side
    87,937.70x = 2,819,825,300.15
  5. Step 5: Solve for x
    x = 2,819,825,300.15/87,937.70
  6. Step 6: Final answer
    x = 32,066.17

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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.