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Finding the Fourth Proportional to 93,170.18, 128,575.77 and 53,418.50

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Solution

The fourth proportional to 93,170.18, 128,575.77 and 53,418.50 is: 73,718.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,170.18 : 128,575.77 = 53,418.50 : x
  2. Step 2: Convert to fraction form
    93,170.18/128,575.77 = 53,418.50/x
  3. Step 3: Cross multiply
    93,170.18x = 128,575.77 × 53,418.50
  4. Step 4: Simplify right side
    93,170.18x = 6,868,324,769.75
  5. Step 5: Solve for x
    x = 6,868,324,769.75/93,170.18
  6. Step 6: Final answer
    x = 73,718.06

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