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Finding the Fourth Proportional to 86,659.20, 130,007.70 and 49,237.20

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Solution

The fourth proportional to 86,659.20, 130,007.70 and 49,237.20 is: 73,866.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,659.20 : 130,007.70 = 49,237.20 : x
  2. Step 2: Convert to fraction form
    86,659.20/130,007.70 = 49,237.20/x
  3. Step 3: Cross multiply
    86,659.20x = 130,007.70 × 49,237.20
  4. Step 4: Simplify right side
    86,659.20x = 6,401,215,126.44
  5. Step 5: Solve for x
    x = 6,401,215,126.44/86,659.20
  6. Step 6: Final answer
    x = 73,866.54

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