Home / 90,236.70-135,317.79-34,067.25

Finding the Fourth Proportional to 90,236.70, 135,317.79 and 34,067.25

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Solution

The fourth proportional to 90,236.70, 135,317.79 and 34,067.25 is: 51,086.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,236.70 : 135,317.79 = 34,067.25 : x
  2. Step 2: Convert to fraction form
    90,236.70/135,317.79 = 34,067.25/x
  3. Step 3: Cross multiply
    90,236.70x = 135,317.79 × 34,067.25
  4. Step 4: Simplify right side
    90,236.70x = 4,609,904,981.38
  5. Step 5: Solve for x
    x = 4,609,904,981.38/90,236.70
  6. Step 6: Final answer
    x = 51,086.81

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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.