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Finding the Fourth Proportional to 57,931.20, 86,929.20 and 24,645.60

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Solution

The fourth proportional to 57,931.20, 86,929.20 and 24,645.60 is: 36,982.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,931.20 : 86,929.20 = 24,645.60 : x
  2. Step 2: Convert to fraction form
    57,931.20/86,929.20 = 24,645.60/x
  3. Step 3: Cross multiply
    57,931.20x = 86,929.20 × 24,645.60
  4. Step 4: Simplify right side
    57,931.20x = 2,142,422,291.52
  5. Step 5: Solve for x
    x = 2,142,422,291.52/57,931.20
  6. Step 6: Final answer
    x = 36,982.18

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