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Finding the Fourth Proportional to 45,321.32, 67,981.71 and 17,619.32

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Solution

The fourth proportional to 45,321.32, 67,981.71 and 17,619.32 is: 26,428.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,321.32 : 67,981.71 = 17,619.32 : x
  2. Step 2: Convert to fraction form
    45,321.32/67,981.71 = 17,619.32/x
  3. Step 3: Cross multiply
    45,321.32x = 67,981.71 × 17,619.32
  4. Step 4: Simplify right side
    45,321.32x = 1,197,791,738.66
  5. Step 5: Solve for x
    x = 1,197,791,738.66/45,321.32
  6. Step 6: Final answer
    x = 26,428.88

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