Home / 36,760.80-55,080.40-21,151.20

Finding the Fourth Proportional to 36,760.80, 55,080.40 and 21,151.20

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Solution

The fourth proportional to 36,760.80, 55,080.40 and 21,151.20 is: 31,691.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,760.80 : 55,080.40 = 21,151.20 : x
  2. Step 2: Convert to fraction form
    36,760.80/55,080.40 = 21,151.20/x
  3. Step 3: Cross multiply
    36,760.80x = 55,080.40 × 21,151.20
  4. Step 4: Simplify right side
    36,760.80x = 1,165,016,556.48
  5. Step 5: Solve for x
    x = 1,165,016,556.48/36,760.80
  6. Step 6: Final answer
    x = 31,691.82

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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.