Home / 281,591.24-422,427.96-81,885.74

Finding the Fourth Proportional to 281,591.24, 422,427.96 and 81,885.74

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Solution

The fourth proportional to 281,591.24, 422,427.96 and 81,885.74 is: 122,840.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,591.24 : 422,427.96 = 81,885.74 : x
  2. Step 2: Convert to fraction form
    281,591.24/422,427.96 = 81,885.74/x
  3. Step 3: Cross multiply
    281,591.24x = 422,427.96 × 81,885.74
  4. Step 4: Simplify right side
    281,591.24x = 34,590,823,989.15
  5. Step 5: Solve for x
    x = 34,590,823,989.15/281,591.24
  6. Step 6: Final answer
    x = 122,840.56

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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.