Home / 80,946.38-121,410.46-21,786.82

Finding the Fourth Proportional to 80,946.38, 121,410.46 and 21,786.82

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Solution

The fourth proportional to 80,946.38, 121,410.46 and 21,786.82 is: 32,677.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,946.38 : 121,410.46 = 21,786.82 : x
  2. Step 2: Convert to fraction form
    80,946.38/121,410.46 = 21,786.82/x
  3. Step 3: Cross multiply
    80,946.38x = 121,410.46 × 21,786.82
  4. Step 4: Simplify right side
    80,946.38x = 2,645,147,838.14
  5. Step 5: Solve for x
    x = 2,645,147,838.14/80,946.38
  6. Step 6: Final answer
    x = 32,677.78

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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.