Home / 51,974.72-77,961.40-12,531.52

Finding the Fourth Proportional to 51,974.72, 77,961.40 and 12,531.52

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Solution

The fourth proportional to 51,974.72, 77,961.40 and 12,531.52 is: 18,797.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,974.72 : 77,961.40 = 12,531.52 : x
  2. Step 2: Convert to fraction form
    51,974.72/77,961.40 = 12,531.52/x
  3. Step 3: Cross multiply
    51,974.72x = 77,961.40 × 12,531.52
  4. Step 4: Simplify right side
    51,974.72x = 976,974,617.10
  5. Step 5: Solve for x
    x = 976,974,617.10/51,974.72
  6. Step 6: Final answer
    x = 18,797.11

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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.