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Finding the Fourth Proportional to 65,892.36, 90,928.17 and 37,215.30

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Solution

The fourth proportional to 65,892.36, 90,928.17 and 37,215.30 is: 51,355.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,892.36 : 90,928.17 = 37,215.30 : x
  2. Step 2: Convert to fraction form
    65,892.36/90,928.17 = 37,215.30/x
  3. Step 3: Cross multiply
    65,892.36x = 90,928.17 × 37,215.30
  4. Step 4: Simplify right side
    65,892.36x = 3,383,919,125.00
  5. Step 5: Solve for x
    x = 3,383,919,125.00/65,892.36
  6. Step 6: Final answer
    x = 51,355.26

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