Home / 87,519.64-120,777.04-51,722.52

Finding the Fourth Proportional to 87,519.64, 120,777.04 and 51,722.52

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Solution

The fourth proportional to 87,519.64, 120,777.04 and 51,722.52 is: 71,377.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,519.64 : 120,777.04 = 51,722.52 : x
  2. Step 2: Convert to fraction form
    87,519.64/120,777.04 = 51,722.52/x
  3. Step 3: Cross multiply
    87,519.64x = 120,777.04 × 51,722.52
  4. Step 4: Simplify right side
    87,519.64x = 6,246,892,866.94
  5. Step 5: Solve for x
    x = 6,246,892,866.94/87,519.64
  6. Step 6: Final answer
    x = 71,377.04

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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.