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Finding the Fourth Proportional to 77,203.80, 115,611.30 and 50,765.40

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Solution

The fourth proportional to 77,203.80, 115,611.30 and 50,765.40 is: 76,020.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,203.80 : 115,611.30 = 50,765.40 : x
  2. Step 2: Convert to fraction form
    77,203.80/115,611.30 = 50,765.40/x
  3. Step 3: Cross multiply
    77,203.80x = 115,611.30 × 50,765.40
  4. Step 4: Simplify right side
    77,203.80x = 5,869,053,889.02
  5. Step 5: Solve for x
    x = 5,869,053,889.02/77,203.80
  6. Step 6: Final answer
    x = 76,020.27

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