Home / 84,358.56-126,496.11-28,179.39

Finding the Fourth Proportional to 84,358.56, 126,496.11 and 28,179.39

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Solution

The fourth proportional to 84,358.56, 126,496.11 and 28,179.39 is: 42,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,358.56 : 126,496.11 = 28,179.39 : x
  2. Step 2: Convert to fraction form
    84,358.56/126,496.11 = 28,179.39/x
  3. Step 3: Cross multiply
    84,358.56x = 126,496.11 × 28,179.39
  4. Step 4: Simplify right side
    84,358.56x = 3,564,583,217.17
  5. Step 5: Solve for x
    x = 3,564,583,217.17/84,358.56
  6. Step 6: Final answer
    x = 42,255.15

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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.