Home / 66,619.14-91,935.44-39,777.36

Finding the Fourth Proportional to 66,619.14, 91,935.44 and 39,777.36

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Solution

The fourth proportional to 66,619.14, 91,935.44 and 39,777.36 is: 54,893.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,619.14 : 91,935.44 = 39,777.36 : x
  2. Step 2: Convert to fraction form
    66,619.14/91,935.44 = 39,777.36/x
  3. Step 3: Cross multiply
    66,619.14x = 91,935.44 × 39,777.36
  4. Step 4: Simplify right side
    66,619.14x = 3,656,949,093.64
  5. Step 5: Solve for x
    x = 3,656,949,093.64/66,619.14
  6. Step 6: Final answer
    x = 54,893.37

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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.