Home / 79,183.26-118,760.04-39,729.78

Finding the Fourth Proportional to 79,183.26, 118,760.04 and 39,729.78

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Solution

The fourth proportional to 79,183.26, 118,760.04 and 39,729.78 is: 59,587.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,183.26 : 118,760.04 = 39,729.78 : x
  2. Step 2: Convert to fraction form
    79,183.26/118,760.04 = 39,729.78/x
  3. Step 3: Cross multiply
    79,183.26x = 118,760.04 × 39,729.78
  4. Step 4: Simplify right side
    79,183.26x = 4,718,310,261.99
  5. Step 5: Solve for x
    x = 4,718,310,261.99/79,183.26
  6. Step 6: Final answer
    x = 59,587.22

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1.5x scale

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.