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Finding the Fourth Proportional to 73,943.12, 102,041.28 and 40,409.12

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Solution

The fourth proportional to 73,943.12, 102,041.28 and 40,409.12 is: 55,764.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,943.12 : 102,041.28 = 40,409.12 : x
  2. Step 2: Convert to fraction form
    73,943.12/102,041.28 = 40,409.12/x
  3. Step 3: Cross multiply
    73,943.12x = 102,041.28 × 40,409.12
  4. Step 4: Simplify right side
    73,943.12x = 4,123,398,328.47
  5. Step 5: Solve for x
    x = 4,123,398,328.47/73,943.12
  6. Step 6: Final answer
    x = 55,764.46

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