Home / 87,044.22-120,099.51-51,231.42

Finding the Fourth Proportional to 87,044.22, 120,099.51 and 51,231.42

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Solution

The fourth proportional to 87,044.22, 120,099.51 and 51,231.42 is: 70,686.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,044.22 : 120,099.51 = 51,231.42 : x
  2. Step 2: Convert to fraction form
    87,044.22/120,099.51 = 51,231.42/x
  3. Step 3: Cross multiply
    87,044.22x = 120,099.51 × 51,231.42
  4. Step 4: Simplify right side
    87,044.22x = 6,152,868,438.60
  5. Step 5: Solve for x
    x = 6,152,868,438.60/87,044.22
  6. Step 6: Final answer
    x = 70,686.70

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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.