Home / 281,619.72-422,425.94-68,389.45

Finding the Fourth Proportional to 281,619.72, 422,425.94 and 68,389.45

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Solution

The fourth proportional to 281,619.72, 422,425.94 and 68,389.45 is: 102,583.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,619.72 : 422,425.94 = 68,389.45 : x
  2. Step 2: Convert to fraction form
    281,619.72/422,425.94 = 68,389.45/x
  3. Step 3: Cross multiply
    281,619.72x = 422,425.94 × 68,389.45
  4. Step 4: Simplify right side
    281,619.72x = 28,889,476,304.32
  5. Step 5: Solve for x
    x = 28,889,476,304.32/281,619.72
  6. Step 6: Final answer
    x = 102,583.29

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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.