Home / 281,721.62-422,597.81-71,361.38

Finding the Fourth Proportional to 281,721.62, 422,597.81 and 71,361.38

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Solution

The fourth proportional to 281,721.62, 422,597.81 and 71,361.38 is: 107,045.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,721.62 : 422,597.81 = 71,361.38 : x
  2. Step 2: Convert to fraction form
    281,721.62/422,597.81 = 71,361.38/x
  3. Step 3: Cross multiply
    281,721.62x = 422,597.81 × 71,361.38
  4. Step 4: Simplify right side
    281,721.62x = 30,157,160,971.99
  5. Step 5: Solve for x
    x = 30,157,160,971.99/281,721.62
  6. Step 6: Final answer
    x = 107,045.96

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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.