Home / 66,418.94-91,659.89-40,942.14

Finding the Fourth Proportional to 66,418.94, 91,659.89 and 40,942.14

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Solution

The fourth proportional to 66,418.94, 91,659.89 and 40,942.14 is: 56,501.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,418.94 : 91,659.89 = 40,942.14 : x
  2. Step 2: Convert to fraction form
    66,418.94/91,659.89 = 40,942.14/x
  3. Step 3: Cross multiply
    66,418.94x = 91,659.89 × 40,942.14
  4. Step 4: Simplify right side
    66,418.94x = 3,752,751,844.05
  5. Step 5: Solve for x
    x = 3,752,751,844.05/66,418.94
  6. Step 6: Final answer
    x = 56,501.23

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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.