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Finding the Fourth Proportional to 53,989.88, 80,997.03 and 20,725.61

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Solution

The fourth proportional to 53,989.88, 80,997.03 and 20,725.61 is: 31,093.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,989.88 : 80,997.03 = 20,725.61 : x
  2. Step 2: Convert to fraction form
    53,989.88/80,997.03 = 20,725.61/x
  3. Step 3: Cross multiply
    53,989.88x = 80,997.03 × 20,725.61
  4. Step 4: Simplify right side
    53,989.88x = 1,678,712,449.95
  5. Step 5: Solve for x
    x = 1,678,712,449.95/53,989.88
  6. Step 6: Final answer
    x = 31,093.10

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