Home / 84,119.49-126,161.42-31,532.85

Finding the Fourth Proportional to 84,119.49, 126,161.42 and 31,532.85

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Solution

The fourth proportional to 84,119.49, 126,161.42 and 31,532.85 is: 47,292.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,119.49 : 126,161.42 = 31,532.85 : x
  2. Step 2: Convert to fraction form
    84,119.49/126,161.42 = 31,532.85/x
  3. Step 3: Cross multiply
    84,119.49x = 126,161.42 × 31,532.85
  4. Step 4: Simplify right side
    84,119.49x = 3,978,228,974.98
  5. Step 5: Solve for x
    x = 3,978,228,974.98/84,119.49
  6. Step 6: Final answer
    x = 47,292.60

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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.