Home / 281,677.24-422,516.54-71,315.20

Finding the Fourth Proportional to 281,677.24, 422,516.54 and 71,315.20

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Solution

The fourth proportional to 281,677.24, 422,516.54 and 71,315.20 is: 106,972.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,677.24 : 422,516.54 = 71,315.20 : x
  2. Step 2: Convert to fraction form
    281,677.24/422,516.54 = 71,315.20/x
  3. Step 3: Cross multiply
    281,677.24x = 422,516.54 × 71,315.20
  4. Step 4: Simplify right side
    281,677.24x = 30,131,851,553.41
  5. Step 5: Solve for x
    x = 30,131,851,553.41/281,677.24
  6. Step 6: Final answer
    x = 106,972.97

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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.