Home / 84,117.39-126,175.85-20,936.33

Finding the Fourth Proportional to 84,117.39, 126,175.85 and 20,936.33

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Solution

The fourth proportional to 84,117.39, 126,175.85 and 20,936.33 is: 31,404.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,117.39 : 126,175.85 = 20,936.33 : x
  2. Step 2: Convert to fraction form
    84,117.39/126,175.85 = 20,936.33/x
  3. Step 3: Cross multiply
    84,117.39x = 126,175.85 × 20,936.33
  4. Step 4: Simplify right side
    84,117.39x = 2,641,659,233.63
  5. Step 5: Solve for x
    x = 2,641,659,233.63/84,117.39
  6. Step 6: Final answer
    x = 31,404.44

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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.