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Finding the Fourth Proportional to 70,915.28, 106,372.53 and 40,910.09

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Solution

The fourth proportional to 70,915.28, 106,372.53 and 40,910.09 is: 61,364.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,915.28 : 106,372.53 = 40,910.09 : x
  2. Step 2: Convert to fraction form
    70,915.28/106,372.53 = 40,910.09/x
  3. Step 3: Cross multiply
    70,915.28x = 106,372.53 × 40,910.09
  4. Step 4: Simplify right side
    70,915.28x = 4,351,709,243.97
  5. Step 5: Solve for x
    x = 4,351,709,243.97/70,915.28
  6. Step 6: Final answer
    x = 61,364.91

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