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Finding the Fourth Proportional to 67,289.60, 101,153.10 and 57,666.80

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Solution

The fourth proportional to 67,289.60, 101,153.10 and 57,666.80 is: 86,687.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,289.60 : 101,153.10 = 57,666.80 : x
  2. Step 2: Convert to fraction form
    67,289.60/101,153.10 = 57,666.80/x
  3. Step 3: Cross multiply
    67,289.60x = 101,153.10 × 57,666.80
  4. Step 4: Simplify right side
    67,289.60x = 5,833,175,587.08
  5. Step 5: Solve for x
    x = 5,833,175,587.08/67,289.60
  6. Step 6: Final answer
    x = 86,687.62

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