Home / 51,974.97-77,961.77-12,531.77

Finding the Fourth Proportional to 51,974.97, 77,961.77 and 12,531.77

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Solution

The fourth proportional to 51,974.97, 77,961.77 and 12,531.77 is: 18,797.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,974.97 : 77,961.77 = 12,531.77 : x
  2. Step 2: Convert to fraction form
    51,974.97/77,961.77 = 12,531.77/x
  3. Step 3: Cross multiply
    51,974.97x = 77,961.77 × 12,531.77
  4. Step 4: Simplify right side
    51,974.97x = 976,998,970.43
  5. Step 5: Solve for x
    x = 976,998,970.43/51,974.97
  6. Step 6: Final answer
    x = 18,797.49

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1.5x scale

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.