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Finding the Fourth Proportional to 90,250.72, 124,580.88 and 80,802.88

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Solution

The fourth proportional to 90,250.72, 124,580.88 and 80,802.88 is: 111,539.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,250.72 : 124,580.88 = 80,802.88 : x
  2. Step 2: Convert to fraction form
    90,250.72/124,580.88 = 80,802.88/x
  3. Step 3: Cross multiply
    90,250.72x = 124,580.88 × 80,802.88
  4. Step 4: Simplify right side
    90,250.72x = 10,066,493,896.93
  5. Step 5: Solve for x
    x = 10,066,493,896.93/90,250.72
  6. Step 6: Final answer
    x = 111,539.21

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