Home / 54,776.20-82,196.70-19,711.30

Finding the Fourth Proportional to 54,776.20, 82,196.70 and 19,711.30

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Solution

The fourth proportional to 54,776.20, 82,196.70 and 19,711.30 is: 29,578.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,776.20 : 82,196.70 = 19,711.30 : x
  2. Step 2: Convert to fraction form
    54,776.20/82,196.70 = 19,711.30/x
  3. Step 3: Cross multiply
    54,776.20x = 82,196.70 × 19,711.30
  4. Step 4: Simplify right side
    54,776.20x = 1,620,203,812.71
  5. Step 5: Solve for x
    x = 1,620,203,812.71/54,776.20
  6. Step 6: Final answer
    x = 29,578.61

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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.