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Finding the Fourth Proportional to 86,900.75, 130,375.73 and 51,393.59

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Solution

The fourth proportional to 86,900.75, 130,375.73 and 51,393.59 is: 77,104.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,900.75 : 130,375.73 = 51,393.59 : x
  2. Step 2: Convert to fraction form
    86,900.75/130,375.73 = 51,393.59/x
  3. Step 3: Cross multiply
    86,900.75x = 130,375.73 × 51,393.59
  4. Step 4: Simplify right side
    86,900.75x = 6,700,476,813.57
  5. Step 5: Solve for x
    x = 6,700,476,813.57/86,900.75
  6. Step 6: Final answer
    x = 77,104.94

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