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Finding the Fourth Proportional to 57,333.80, 86,000.70 and 51,210.20

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Solution

The fourth proportional to 57,333.80, 86,000.70 and 51,210.20 is: 76,815.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,333.80 : 86,000.70 = 51,210.20 : x
  2. Step 2: Convert to fraction form
    57,333.80/86,000.70 = 51,210.20/x
  3. Step 3: Cross multiply
    57,333.80x = 86,000.70 × 51,210.20
  4. Step 4: Simplify right side
    57,333.80x = 4,404,113,047.14
  5. Step 5: Solve for x
    x = 4,404,113,047.14/57,333.80
  6. Step 6: Final answer
    x = 76,815.30

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