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Finding the Fourth Proportional to 86,086.88, 128,962.16 and 48,533.36

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Solution

The fourth proportional to 86,086.88, 128,962.16 and 48,533.36 is: 72,705.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,086.88 : 128,962.16 = 48,533.36 : x
  2. Step 2: Convert to fraction form
    86,086.88/128,962.16 = 48,533.36/x
  3. Step 3: Cross multiply
    86,086.88x = 128,962.16 × 48,533.36
  4. Step 4: Simplify right side
    86,086.88x = 6,258,966,694.99
  5. Step 5: Solve for x
    x = 6,258,966,694.99/86,086.88
  6. Step 6: Final answer
    x = 72,705.24

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