Home / 84,087.07-126,131.06-21,757.57

Finding the Fourth Proportional to 84,087.07, 126,131.06 and 21,757.57

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Solution

The fourth proportional to 84,087.07, 126,131.06 and 21,757.57 is: 32,636.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,087.07 : 126,131.06 = 21,757.57 : x
  2. Step 2: Convert to fraction form
    84,087.07/126,131.06 = 21,757.57/x
  3. Step 3: Cross multiply
    84,087.07x = 126,131.06 × 21,757.57
  4. Step 4: Simplify right side
    84,087.07x = 2,744,305,815.68
  5. Step 5: Solve for x
    x = 2,744,305,815.68/84,087.07
  6. Step 6: Final answer
    x = 32,636.48

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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.