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Finding the Fourth Proportional to 56,668.82, 78,202.98 and 31,175.54

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Solution

The fourth proportional to 56,668.82, 78,202.98 and 31,175.54 is: 43,022.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,668.82 : 78,202.98 = 31,175.54 : x
  2. Step 2: Convert to fraction form
    56,668.82/78,202.98 = 31,175.54/x
  3. Step 3: Cross multiply
    56,668.82x = 78,202.98 × 31,175.54
  4. Step 4: Simplify right side
    56,668.82x = 2,438,020,131.11
  5. Step 5: Solve for x
    x = 2,438,020,131.11/56,668.82
  6. Step 6: Final answer
    x = 43,022.25

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