Home / 83,131.26-124,696.89-20,801.76

Finding the Fourth Proportional to 83,131.26, 124,696.89 and 20,801.76

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Solution

The fourth proportional to 83,131.26, 124,696.89 and 20,801.76 is: 31,202.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,131.26 : 124,696.89 = 20,801.76 : x
  2. Step 2: Convert to fraction form
    83,131.26/124,696.89 = 20,801.76/x
  3. Step 3: Cross multiply
    83,131.26x = 124,696.89 × 20,801.76
  4. Step 4: Simplify right side
    83,131.26x = 2,593,914,778.53
  5. Step 5: Solve for x
    x = 2,593,914,778.53/83,131.26
  6. Step 6: Final answer
    x = 31,202.64

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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.