Home / 84,725.80-126,933.78-39,664.49

Finding the Fourth Proportional to 84,725.80, 126,933.78 and 39,664.49

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Solution

The fourth proportional to 84,725.80, 126,933.78 and 39,664.49 is: 59,424.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,725.80 : 126,933.78 = 39,664.49 : x
  2. Step 2: Convert to fraction form
    84,725.80/126,933.78 = 39,664.49/x
  3. Step 3: Cross multiply
    84,725.80x = 126,933.78 × 39,664.49
  4. Step 4: Simplify right side
    84,725.80x = 5,034,763,161.55
  5. Step 5: Solve for x
    x = 5,034,763,161.55/84,725.80
  6. Step 6: Final answer
    x = 59,424.21

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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.