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Finding the Fourth Proportional to 53,408.88, 80,112.24 and 15,969.12

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Solution

The fourth proportional to 53,408.88, 80,112.24 and 15,969.12 is: 23,953.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,408.88 : 80,112.24 = 15,969.12 : x
  2. Step 2: Convert to fraction form
    53,408.88/80,112.24 = 15,969.12/x
  3. Step 3: Cross multiply
    53,408.88x = 80,112.24 × 15,969.12
  4. Step 4: Simplify right side
    53,408.88x = 1,279,321,974.03
  5. Step 5: Solve for x
    x = 1,279,321,974.03/53,408.88
  6. Step 6: Final answer
    x = 23,953.36

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1.5x scale

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.