Home / 79,571.38-109,805.96-43,761.28

Finding the Fourth Proportional to 79,571.38, 109,805.96 and 43,761.28

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Solution

The fourth proportional to 79,571.38, 109,805.96 and 43,761.28 is: 60,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,571.38 : 109,805.96 = 43,761.28 : x
  2. Step 2: Convert to fraction form
    79,571.38/109,805.96 = 43,761.28/x
  3. Step 3: Cross multiply
    79,571.38x = 109,805.96 × 43,761.28
  4. Step 4: Simplify right side
    79,571.38x = 4,805,249,142.42
  5. Step 5: Solve for x
    x = 4,805,249,142.42/79,571.38
  6. Step 6: Final answer
    x = 60,389.16

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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.