Home / 87,027.82-120,089.34-51,215.69

Finding the Fourth Proportional to 87,027.82, 120,089.34 and 51,215.69

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Solution

The fourth proportional to 87,027.82, 120,089.34 and 51,215.69 is: 70,672.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,027.82 : 120,089.34 = 51,215.69 : x
  2. Step 2: Convert to fraction form
    87,027.82/120,089.34 = 51,215.69/x
  3. Step 3: Cross multiply
    87,027.82x = 120,089.34 × 51,215.69
  4. Step 4: Simplify right side
    87,027.82x = 6,150,458,709.97
  5. Step 5: Solve for x
    x = 6,150,458,709.97/87,027.82
  6. Step 6: Final answer
    x = 70,672.33

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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.