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Finding the Fourth Proportional to 73,955.56, 102,058.50 and 40,421.80

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Solution

The fourth proportional to 73,955.56, 102,058.50 and 40,421.80 is: 55,781.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,955.56 : 102,058.50 = 40,421.80 : x
  2. Step 2: Convert to fraction form
    73,955.56/102,058.50 = 40,421.80/x
  3. Step 3: Cross multiply
    73,955.56x = 102,058.50 × 40,421.80
  4. Step 4: Simplify right side
    73,955.56x = 4,125,388,275.30
  5. Step 5: Solve for x
    x = 4,125,388,275.30/73,955.56
  6. Step 6: Final answer
    x = 55,781.99

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