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Finding the Fourth Proportional to 53,919.20, 80,864.40 and 16,479.20

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Solution

The fourth proportional to 53,919.20, 80,864.40 and 16,479.20 is: 24,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,919.20 : 80,864.40 = 16,479.20 : x
  2. Step 2: Convert to fraction form
    53,919.20/80,864.40 = 16,479.20/x
  3. Step 3: Cross multiply
    53,919.20x = 80,864.40 × 16,479.20
  4. Step 4: Simplify right side
    53,919.20x = 1,332,580,620.48
  5. Step 5: Solve for x
    x = 1,332,580,620.48/53,919.20
  6. Step 6: Final answer
    x = 24,714.40

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