Home / 54,229.44-81,281.70-20,934.84

Finding the Fourth Proportional to 54,229.44, 81,281.70 and 20,934.84

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Solution

The fourth proportional to 54,229.44, 81,281.70 and 20,934.84 is: 31,378.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,229.44 : 81,281.70 = 20,934.84 : x
  2. Step 2: Convert to fraction form
    54,229.44/81,281.70 = 20,934.84/x
  3. Step 3: Cross multiply
    54,229.44x = 81,281.70 × 20,934.84
  4. Step 4: Simplify right side
    54,229.44x = 1,701,619,384.43
  5. Step 5: Solve for x
    x = 1,701,619,384.43/54,229.44
  6. Step 6: Final answer
    x = 31,378.15

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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.