Home / 67,045.50-100,568.21-17,123.81

Finding the Fourth Proportional to 67,045.50, 100,568.21 and 17,123.81

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Solution

The fourth proportional to 67,045.50, 100,568.21 and 17,123.81 is: 25,685.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,045.50 : 100,568.21 = 17,123.81 : x
  2. Step 2: Convert to fraction form
    67,045.50/100,568.21 = 17,123.81/x
  3. Step 3: Cross multiply
    67,045.50x = 100,568.21 × 17,123.81
  4. Step 4: Simplify right side
    67,045.50x = 1,722,110,331.62
  5. Step 5: Solve for x
    x = 1,722,110,331.62/67,045.50
  6. Step 6: Final answer
    x = 25,685.70

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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.