Home / 79,209.68-109,306.56-43,399.36

Finding the Fourth Proportional to 79,209.68, 109,306.56 and 43,399.36

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Solution

The fourth proportional to 79,209.68, 109,306.56 and 43,399.36 is: 59,889.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,209.68 : 109,306.56 = 43,399.36 : x
  2. Step 2: Convert to fraction form
    79,209.68/109,306.56 = 43,399.36/x
  3. Step 3: Cross multiply
    79,209.68x = 109,306.56 × 43,399.36
  4. Step 4: Simplify right side
    79,209.68x = 4,743,834,747.80
  5. Step 5: Solve for x
    x = 4,743,834,747.80/79,209.68
  6. Step 6: Final answer
    x = 59,889.58

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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.