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Finding the Fourth Proportional to 92,926.32, 128,231.64 and 55,221.36

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Solution

The fourth proportional to 92,926.32, 128,231.64 and 55,221.36 is: 76,201.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,926.32 : 128,231.64 = 55,221.36 : x
  2. Step 2: Convert to fraction form
    92,926.32/128,231.64 = 55,221.36/x
  3. Step 3: Cross multiply
    92,926.32x = 128,231.64 × 55,221.36
  4. Step 4: Simplify right side
    92,926.32x = 7,081,125,555.83
  5. Step 5: Solve for x
    x = 7,081,125,555.83/92,926.32
  6. Step 6: Final answer
    x = 76,201.51

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