Home / 84,170.95-126,214.20-27,991.27

Finding the Fourth Proportional to 84,170.95, 126,214.20 and 27,991.27

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Solution

The fourth proportional to 84,170.95, 126,214.20 and 27,991.27 is: 41,972.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,170.95 : 126,214.20 = 27,991.27 : x
  2. Step 2: Convert to fraction form
    84,170.95/126,214.20 = 27,991.27/x
  3. Step 3: Cross multiply
    84,170.95x = 126,214.20 × 27,991.27
  4. Step 4: Simplify right side
    84,170.95x = 3,532,895,907.80
  5. Step 5: Solve for x
    x = 3,532,895,907.80/84,170.95
  6. Step 6: Final answer
    x = 41,972.87

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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.