Home / 51,974.53-77,961.11-12,531.33

Finding the Fourth Proportional to 51,974.53, 77,961.11 and 12,531.33

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Solution

The fourth proportional to 51,974.53, 77,961.11 and 12,531.33 is: 18,796.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,974.53 : 77,961.11 = 12,531.33 : x
  2. Step 2: Convert to fraction form
    51,974.53/77,961.11 = 12,531.33/x
  3. Step 3: Cross multiply
    51,974.53x = 77,961.11 × 12,531.33
  4. Step 4: Simplify right side
    51,974.53x = 976,956,333.92
  5. Step 5: Solve for x
    x = 976,956,333.92/51,974.53
  6. Step 6: Final answer
    x = 18,796.83

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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.