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Finding the Fourth Proportional to 73,990.28, 102,106.98 and 40,456.28

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Solution

The fourth proportional to 73,990.28, 102,106.98 and 40,456.28 is: 55,829.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,990.28 : 102,106.98 = 40,456.28 : x
  2. Step 2: Convert to fraction form
    73,990.28/102,106.98 = 40,456.28/x
  3. Step 3: Cross multiply
    73,990.28x = 102,106.98 × 40,456.28
  4. Step 4: Simplify right side
    73,990.28x = 4,130,868,572.83
  5. Step 5: Solve for x
    x = 4,130,868,572.83/73,990.28
  6. Step 6: Final answer
    x = 55,829.88

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