Home / 87,936.28-121,352.48-47,650.11

Finding the Fourth Proportional to 87,936.28, 121,352.48 and 47,650.11

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Solution

The fourth proportional to 87,936.28, 121,352.48 and 47,650.11 is: 65,757.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,936.28 : 121,352.48 = 47,650.11 : x
  2. Step 2: Convert to fraction form
    87,936.28/121,352.48 = 47,650.11/x
  3. Step 3: Cross multiply
    87,936.28x = 121,352.48 × 47,650.11
  4. Step 4: Simplify right side
    87,936.28x = 5,782,458,506.14
  5. Step 5: Solve for x
    x = 5,782,458,506.14/87,936.28
  6. Step 6: Final answer
    x = 65,757.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.