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Finding the Fourth Proportional to 68,618.72, 102,927.84 and 45,074.88

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Solution

The fourth proportional to 68,618.72, 102,927.84 and 45,074.88 is: 67,612.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,618.72 : 102,927.84 = 45,074.88 : x
  2. Step 2: Convert to fraction form
    68,618.72/102,927.84 = 45,074.88/x
  3. Step 3: Cross multiply
    68,618.72x = 102,927.84 × 45,074.88
  4. Step 4: Simplify right side
    68,618.72x = 4,639,460,036.66
  5. Step 5: Solve for x
    x = 4,639,460,036.66/68,618.72
  6. Step 6: Final answer
    x = 67,612.16

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