Home / 79,272.38-109,395.75-43,463.66

Finding the Fourth Proportional to 79,272.38, 109,395.75 and 43,463.66

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Solution

The fourth proportional to 79,272.38, 109,395.75 and 43,463.66 is: 59,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,272.38 : 109,395.75 = 43,463.66 : x
  2. Step 2: Convert to fraction form
    79,272.38/109,395.75 = 43,463.66/x
  3. Step 3: Cross multiply
    79,272.38x = 109,395.75 × 43,463.66
  4. Step 4: Simplify right side
    79,272.38x = 4,754,739,683.45
  5. Step 5: Solve for x
    x = 4,754,739,683.45/79,272.38
  6. Step 6: Final answer
    x = 59,979.78

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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.