Home / 78,160.82-117,241.29-54,891.14

Finding the Fourth Proportional to 78,160.82, 117,241.29 and 54,891.14

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Solution

The fourth proportional to 78,160.82, 117,241.29 and 54,891.14 is: 82,336.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,160.82 : 117,241.29 = 54,891.14 : x
  2. Step 2: Convert to fraction form
    78,160.82/117,241.29 = 54,891.14/x
  3. Step 3: Cross multiply
    78,160.82x = 117,241.29 × 54,891.14
  4. Step 4: Simplify right side
    78,160.82x = 6,435,507,476.96
  5. Step 5: Solve for x
    x = 6,435,507,476.96/78,160.82
  6. Step 6: Final answer
    x = 82,336.75

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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.