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Finding the Fourth Proportional to 98,616.50, 136,090.77 and 53,904.50

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Solution

The fourth proportional to 98,616.50, 136,090.77 and 53,904.50 is: 74,388.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,616.50 : 136,090.77 = 53,904.50 : x
  2. Step 2: Convert to fraction form
    98,616.50/136,090.77 = 53,904.50/x
  3. Step 3: Cross multiply
    98,616.50x = 136,090.77 × 53,904.50
  4. Step 4: Simplify right side
    98,616.50x = 7,335,904,911.47
  5. Step 5: Solve for x
    x = 7,335,904,911.47/98,616.50
  6. Step 6: Final answer
    x = 74,388.21

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