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Finding the Fourth Proportional to 75,729.41, 113,594.10 and 20,325.41

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Solution

The fourth proportional to 75,729.41, 113,594.10 and 20,325.41 is: 30,488.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,729.41 : 113,594.10 = 20,325.41 : x
  2. Step 2: Convert to fraction form
    75,729.41/113,594.10 = 20,325.41/x
  3. Step 3: Cross multiply
    75,729.41x = 113,594.10 × 20,325.41
  4. Step 4: Simplify right side
    75,729.41x = 2,308,846,088.11
  5. Step 5: Solve for x
    x = 2,308,846,088.11/75,729.41
  6. Step 6: Final answer
    x = 30,488.11

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