Home / 80,714.87-121,064.09-21,556.52

Finding the Fourth Proportional to 80,714.87, 121,064.09 and 21,556.52

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Solution

The fourth proportional to 80,714.87, 121,064.09 and 21,556.52 is: 32,332.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,714.87 : 121,064.09 = 21,556.52 : x
  2. Step 2: Convert to fraction form
    80,714.87/121,064.09 = 21,556.52/x
  3. Step 3: Cross multiply
    80,714.87x = 121,064.09 × 21,556.52
  4. Step 4: Simplify right side
    80,714.87x = 2,609,719,764.26
  5. Step 5: Solve for x
    x = 2,609,719,764.26/80,714.87
  6. Step 6: Final answer
    x = 32,332.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.