Home / 87,600.34-120,884.97-51,811.30

Finding the Fourth Proportional to 87,600.34, 120,884.97 and 51,811.30

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Solution

The fourth proportional to 87,600.34, 120,884.97 and 51,811.30 is: 71,497.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,600.34 : 120,884.97 = 51,811.30 : x
  2. Step 2: Convert to fraction form
    87,600.34/120,884.97 = 51,811.30/x
  3. Step 3: Cross multiply
    87,600.34x = 120,884.97 × 51,811.30
  4. Step 4: Simplify right side
    87,600.34x = 6,263,207,446.16
  5. Step 5: Solve for x
    x = 6,263,207,446.16/87,600.34
  6. Step 6: Final answer
    x = 71,497.52

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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.