Home / 84,072.88-126,106.60-34,138.22

Finding the Fourth Proportional to 84,072.88, 126,106.60 and 34,138.22

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Solution

The fourth proportional to 84,072.88, 126,106.60 and 34,138.22 is: 51,206.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,072.88 : 126,106.60 = 34,138.22 : x
  2. Step 2: Convert to fraction form
    84,072.88/126,106.60 = 34,138.22/x
  3. Step 3: Cross multiply
    84,072.88x = 126,106.60 × 34,138.22
  4. Step 4: Simplify right side
    84,072.88x = 4,305,054,854.25
  5. Step 5: Solve for x
    x = 4,305,054,854.25/84,072.88
  6. Step 6: Final answer
    x = 51,206.23

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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.