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Finding the Fourth Proportional to 66,612.21, 99,967.59 and 31,551.95

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Solution

The fourth proportional to 66,612.21, 99,967.59 and 31,551.95 is: 47,351.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,612.21 : 99,967.59 = 31,551.95 : x
  2. Step 2: Convert to fraction form
    66,612.21/99,967.59 = 31,551.95/x
  3. Step 3: Cross multiply
    66,612.21x = 99,967.59 × 31,551.95
  4. Step 4: Simplify right side
    66,612.21x = 3,154,171,901.46
  5. Step 5: Solve for x
    x = 3,154,171,901.46/66,612.21
  6. Step 6: Final answer
    x = 47,351.26

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