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Finding the Fourth Proportional to 92,561.40, 138,906.90 and 40,008.60

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Solution

The fourth proportional to 92,561.40, 138,906.90 and 40,008.60 is: 60,040.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,561.40 : 138,906.90 = 40,008.60 : x
  2. Step 2: Convert to fraction form
    92,561.40/138,906.90 = 40,008.60/x
  3. Step 3: Cross multiply
    92,561.40x = 138,906.90 × 40,008.60
  4. Step 4: Simplify right side
    92,561.40x = 5,557,470,599.34
  5. Step 5: Solve for x
    x = 5,557,470,599.34/92,561.40
  6. Step 6: Final answer
    x = 60,040.91

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