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Finding the Fourth Proportional to 114,781.31, 172,073.36 and 39,891.73

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Solution

The fourth proportional to 114,781.31, 172,073.36 and 39,891.73 is: 59,803.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,781.31 : 172,073.36 = 39,891.73 : x
  2. Step 2: Convert to fraction form
    114,781.31/172,073.36 = 39,891.73/x
  3. Step 3: Cross multiply
    114,781.31x = 172,073.36 × 39,891.73
  4. Step 4: Simplify right side
    114,781.31x = 6,864,303,686.86
  5. Step 5: Solve for x
    x = 6,864,303,686.86/114,781.31
  6. Step 6: Final answer
    x = 59,803.32

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