Home / 40,857.36-61,286.09-12,777.56

Finding the Fourth Proportional to 40,857.36, 61,286.09 and 12,777.56

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Solution

The fourth proportional to 40,857.36, 61,286.09 and 12,777.56 is: 19,166.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,857.36 : 61,286.09 = 12,777.56 : x
  2. Step 2: Convert to fraction form
    40,857.36/61,286.09 = 12,777.56/x
  3. Step 3: Cross multiply
    40,857.36x = 61,286.09 × 12,777.56
  4. Step 4: Simplify right side
    40,857.36x = 783,086,692.14
  5. Step 5: Solve for x
    x = 783,086,692.14/40,857.36
  6. Step 6: Final answer
    x = 19,166.36

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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.