Home / 79,140.26-109,213.16-43,329.62

Finding the Fourth Proportional to 79,140.26, 109,213.16 and 43,329.62

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Solution

The fourth proportional to 79,140.26, 109,213.16 and 43,329.62 is: 59,794.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,140.26 : 109,213.16 = 43,329.62 : x
  2. Step 2: Convert to fraction form
    79,140.26/109,213.16 = 43,329.62/x
  3. Step 3: Cross multiply
    79,140.26x = 109,213.16 × 43,329.62
  4. Step 4: Simplify right side
    79,140.26x = 4,732,164,721.80
  5. Step 5: Solve for x
    x = 4,732,164,721.80/79,140.26
  6. Step 6: Final answer
    x = 59,794.66

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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.