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Finding the Fourth Proportional to 91,830.31, 126,726.32 and 51,544.55

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Solution

The fourth proportional to 91,830.31, 126,726.32 and 51,544.55 is: 71,131.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,830.31 : 126,726.32 = 51,544.55 : x
  2. Step 2: Convert to fraction form
    91,830.31/126,726.32 = 51,544.55/x
  3. Step 3: Cross multiply
    91,830.31x = 126,726.32 × 51,544.55
  4. Step 4: Simplify right side
    91,830.31x = 6,532,051,583.23
  5. Step 5: Solve for x
    x = 6,532,051,583.23/91,830.31
  6. Step 6: Final answer
    x = 71,131.76

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