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Finding the Fourth Proportional to 60,302.20, 90,453.30 and 57,742.60

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Solution

The fourth proportional to 60,302.20, 90,453.30 and 57,742.60 is: 86,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,302.20 : 90,453.30 = 57,742.60 : x
  2. Step 2: Convert to fraction form
    60,302.20/90,453.30 = 57,742.60/x
  3. Step 3: Cross multiply
    60,302.20x = 90,453.30 × 57,742.60
  4. Step 4: Simplify right side
    60,302.20x = 5,223,008,720.58
  5. Step 5: Solve for x
    x = 5,223,008,720.58/60,302.20
  6. Step 6: Final answer
    x = 86,613.90

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