Home / 84,578.44-126,882.33-28,424.02

Finding the Fourth Proportional to 84,578.44, 126,882.33 and 28,424.02

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Solution

The fourth proportional to 84,578.44, 126,882.33 and 28,424.02 is: 42,640.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,578.44 : 126,882.33 = 28,424.02 : x
  2. Step 2: Convert to fraction form
    84,578.44/126,882.33 = 28,424.02/x
  3. Step 3: Cross multiply
    84,578.44x = 126,882.33 × 28,424.02
  4. Step 4: Simplify right side
    84,578.44x = 3,606,505,885.57
  5. Step 5: Solve for x
    x = 3,606,505,885.57/84,578.44
  6. Step 6: Final answer
    x = 42,640.96

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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.