Home / 85,156.21-117,515.60-49,366.97

Finding the Fourth Proportional to 85,156.21, 117,515.60 and 49,366.97

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Solution

The fourth proportional to 85,156.21, 117,515.60 and 49,366.97 is: 68,126.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,156.21 : 117,515.60 = 49,366.97 : x
  2. Step 2: Convert to fraction form
    85,156.21/117,515.60 = 49,366.97/x
  3. Step 3: Cross multiply
    85,156.21x = 117,515.60 × 49,366.97
  4. Step 4: Simplify right side
    85,156.21x = 5,801,388,450.45
  5. Step 5: Solve for x
    x = 5,801,388,450.45/85,156.21
  6. Step 6: Final answer
    x = 68,126.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.