Home / 84,272.05-126,394.24-28,112.59

Finding the Fourth Proportional to 84,272.05, 126,394.24 and 28,112.59

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Solution

The fourth proportional to 84,272.05, 126,394.24 and 28,112.59 is: 42,164.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,272.05 : 126,394.24 = 28,112.59 : x
  2. Step 2: Convert to fraction form
    84,272.05/126,394.24 = 28,112.59/x
  3. Step 3: Cross multiply
    84,272.05x = 126,394.24 × 28,112.59
  4. Step 4: Simplify right side
    84,272.05x = 3,553,269,447.48
  5. Step 5: Solve for x
    x = 3,553,269,447.48/84,272.05
  6. Step 6: Final answer
    x = 42,164.27

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1.5x scale

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.