Home / 84,144.35-126,217.07-20,964.62

Finding the Fourth Proportional to 84,144.35, 126,217.07 and 20,964.62

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Solution

The fourth proportional to 84,144.35, 126,217.07 and 20,964.62 is: 31,447.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,144.35 : 126,217.07 = 20,964.62 : x
  2. Step 2: Convert to fraction form
    84,144.35/126,217.07 = 20,964.62/x
  3. Step 3: Cross multiply
    84,144.35x = 126,217.07 × 20,964.62
  4. Step 4: Simplify right side
    84,144.35x = 2,646,093,199.40
  5. Step 5: Solve for x
    x = 2,646,093,199.40/84,144.35
  6. Step 6: Final answer
    x = 31,447.07

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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.