Home / 87,213.40-120,367.64-53,241.66

Finding the Fourth Proportional to 87,213.40, 120,367.64 and 53,241.66

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Solution

The fourth proportional to 87,213.40, 120,367.64 and 53,241.66 is: 73,481.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,213.40 : 120,367.64 = 53,241.66 : x
  2. Step 2: Convert to fraction form
    87,213.40/120,367.64 = 53,241.66/x
  3. Step 3: Cross multiply
    87,213.40x = 120,367.64 × 53,241.66
  4. Step 4: Simplify right side
    87,213.40x = 6,408,572,963.88
  5. Step 5: Solve for x
    x = 6,408,572,963.88/87,213.40
  6. Step 6: Final answer
    x = 73,481.52

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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.