Home / 87,286.25-120,455.03-47,542.25

Finding the Fourth Proportional to 87,286.25, 120,455.03 and 47,542.25

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Solution

The fourth proportional to 87,286.25, 120,455.03 and 47,542.25 is: 65,608.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,286.25 : 120,455.03 = 47,542.25 : x
  2. Step 2: Convert to fraction form
    87,286.25/120,455.03 = 47,542.25/x
  3. Step 3: Cross multiply
    87,286.25x = 120,455.03 × 47,542.25
  4. Step 4: Simplify right side
    87,286.25x = 5,726,703,150.02
  5. Step 5: Solve for x
    x = 5,726,703,150.02/87,286.25
  6. Step 6: Final answer
    x = 65,608.31

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1.5x scale

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.