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Finding the Fourth Proportional to 75,855.20, 113,785.44 and 28,465.48

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Solution

The fourth proportional to 75,855.20, 113,785.44 and 28,465.48 is: 42,699.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,855.20 : 113,785.44 = 28,465.48 : x
  2. Step 2: Convert to fraction form
    75,855.20/113,785.44 = 28,465.48/x
  3. Step 3: Cross multiply
    75,855.20x = 113,785.44 × 28,465.48
  4. Step 4: Simplify right side
    75,855.20x = 3,238,957,166.61
  5. Step 5: Solve for x
    x = 3,238,957,166.61/75,855.20
  6. Step 6: Final answer
    x = 42,699.21

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