Home / 83,414.39-125,121.58-21,084.89

Finding the Fourth Proportional to 83,414.39, 125,121.58 and 21,084.89

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Solution

The fourth proportional to 83,414.39, 125,121.58 and 21,084.89 is: 31,627.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,414.39 : 125,121.58 = 21,084.89 : x
  2. Step 2: Convert to fraction form
    83,414.39/125,121.58 = 21,084.89/x
  3. Step 3: Cross multiply
    83,414.39x = 125,121.58 × 21,084.89
  4. Step 4: Simplify right side
    83,414.39x = 2,638,174,072.61
  5. Step 5: Solve for x
    x = 2,638,174,072.61/83,414.39
  6. Step 6: Final answer
    x = 31,627.33

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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.