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Finding the Fourth Proportional to 64,490.40, 88,999.20 and 37,628.64

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Solution

The fourth proportional to 64,490.40, 88,999.20 and 37,628.64 is: 51,928.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,490.40 : 88,999.20 = 37,628.64 : x
  2. Step 2: Convert to fraction form
    64,490.40/88,999.20 = 37,628.64/x
  3. Step 3: Cross multiply
    64,490.40x = 88,999.20 × 37,628.64
  4. Step 4: Simplify right side
    64,490.40x = 3,348,918,857.09
  5. Step 5: Solve for x
    x = 3,348,918,857.09/64,490.40
  6. Step 6: Final answer
    x = 51,928.95

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