Home / 85,241.16-117,687.67-76,273.11

Finding the Fourth Proportional to 85,241.16, 117,687.67 and 76,273.11

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Solution

The fourth proportional to 85,241.16, 117,687.67 and 76,273.11 is: 105,305.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,241.16 : 117,687.67 = 76,273.11 : x
  2. Step 2: Convert to fraction form
    85,241.16/117,687.67 = 76,273.11/x
  3. Step 3: Cross multiply
    85,241.16x = 117,687.67 × 76,273.11
  4. Step 4: Simplify right side
    85,241.16x = 8,976,404,408.87
  5. Step 5: Solve for x
    x = 8,976,404,408.87/85,241.16
  6. Step 6: Final answer
    x = 105,305.99

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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.