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Finding the Fourth Proportional to 93,319.36, 128,782.11 and 50,878.60

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Solution

The fourth proportional to 93,319.36, 128,782.11 and 50,878.60 is: 70,213.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,319.36 : 128,782.11 = 50,878.60 : x
  2. Step 2: Convert to fraction form
    93,319.36/128,782.11 = 50,878.60/x
  3. Step 3: Cross multiply
    93,319.36x = 128,782.11 × 50,878.60
  4. Step 4: Simplify right side
    93,319.36x = 6,552,253,461.85
  5. Step 5: Solve for x
    x = 6,552,253,461.85/93,319.36
  6. Step 6: Final answer
    x = 70,213.23

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