Home / 87,768.12-121,119.84-47,481.93

Finding the Fourth Proportional to 87,768.12, 121,119.84 and 47,481.93

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Solution

The fourth proportional to 87,768.12, 121,119.84 and 47,481.93 is: 65,524.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,768.12 : 121,119.84 = 47,481.93 : x
  2. Step 2: Convert to fraction form
    87,768.12/121,119.84 = 47,481.93/x
  3. Step 3: Cross multiply
    87,768.12x = 121,119.84 × 47,481.93
  4. Step 4: Simplify right side
    87,768.12x = 5,751,003,764.49
  5. Step 5: Solve for x
    x = 5,751,003,764.49/87,768.12
  6. Step 6: Final answer
    x = 65,524.97

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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.