Home / 66,664.11-91,996.26-39,822.33

Finding the Fourth Proportional to 66,664.11, 91,996.26 and 39,822.33

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Solution

The fourth proportional to 66,664.11, 91,996.26 and 39,822.33 is: 54,954.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,664.11 : 91,996.26 = 39,822.33 : x
  2. Step 2: Convert to fraction form
    66,664.11/91,996.26 = 39,822.33/x
  3. Step 3: Cross multiply
    66,664.11x = 91,996.26 × 39,822.33
  4. Step 4: Simplify right side
    66,664.11x = 3,663,505,620.14
  5. Step 5: Solve for x
    x = 3,663,505,620.14/66,664.11
  6. Step 6: Final answer
    x = 54,954.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.