Home / 53,388.88-80,076.12-13,942.80

Finding the Fourth Proportional to 53,388.88, 80,076.12 and 13,942.80

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Solution

The fourth proportional to 53,388.88, 80,076.12 and 13,942.80 is: 20,912.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,388.88 : 80,076.12 = 13,942.80 : x
  2. Step 2: Convert to fraction form
    53,388.88/80,076.12 = 13,942.80/x
  3. Step 3: Cross multiply
    53,388.88x = 80,076.12 × 13,942.80
  4. Step 4: Simplify right side
    53,388.88x = 1,116,485,325.94
  5. Step 5: Solve for x
    x = 1,116,485,325.94/53,388.88
  6. Step 6: Final answer
    x = 20,912.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.