Home / 79,067.28-109,080-51,835.92

Finding the Fourth Proportional to 79,067.28, 109,080 and 51,835.92

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Solution

The fourth proportional to 79,067.28, 109,080 and 51,835.92 is: 71,512.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,067.28 : 109,080 = 51,835.92 : x
  2. Step 2: Convert to fraction form
    79,067.28/109,080 = 51,835.92/x
  3. Step 3: Cross multiply
    79,067.28x = 109,080 × 51,835.92
  4. Step 4: Simplify right side
    79,067.28x = 5,654,262,153.60
  5. Step 5: Solve for x
    x = 5,654,262,153.60/79,067.28
  6. Step 6: Final answer
    x = 71,512.04

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1.5x scale

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.