Home / 51,974.19-77,961.06-12,531.20

Finding the Fourth Proportional to 51,974.19, 77,961.06 and 12,531.20

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Solution

The fourth proportional to 51,974.19, 77,961.06 and 12,531.20 is: 18,796.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,974.19 : 77,961.06 = 12,531.20 : x
  2. Step 2: Convert to fraction form
    51,974.19/77,961.06 = 12,531.20/x
  3. Step 3: Cross multiply
    51,974.19x = 77,961.06 × 12,531.20
  4. Step 4: Simplify right side
    51,974.19x = 976,945,245.27
  5. Step 5: Solve for x
    x = 976,945,245.27/51,974.19
  6. Step 6: Final answer
    x = 18,796.74

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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.