Home / 67,123.25-100,694.60-20,376.17

Finding the Fourth Proportional to 67,123.25, 100,694.60 and 20,376.17

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Solution

The fourth proportional to 67,123.25, 100,694.60 and 20,376.17 is: 30,567.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,123.25 : 100,694.60 = 20,376.17 : x
  2. Step 2: Convert to fraction form
    67,123.25/100,694.60 = 20,376.17/x
  3. Step 3: Cross multiply
    67,123.25x = 100,694.60 × 20,376.17
  4. Step 4: Simplify right side
    67,123.25x = 2,051,770,185.80
  5. Step 5: Solve for x
    x = 2,051,770,185.80/67,123.25
  6. Step 6: Final answer
    x = 30,567.21

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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.