Home / 67,086.56-100,626.60-19,699.68

Finding the Fourth Proportional to 67,086.56, 100,626.60 and 19,699.68

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Solution

The fourth proportional to 67,086.56, 100,626.60 and 19,699.68 is: 29,548.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,086.56 : 100,626.60 = 19,699.68 : x
  2. Step 2: Convert to fraction form
    67,086.56/100,626.60 = 19,699.68/x
  3. Step 3: Cross multiply
    67,086.56x = 100,626.60 × 19,699.68
  4. Step 4: Simplify right side
    67,086.56x = 1,982,311,819.49
  5. Step 5: Solve for x
    x = 1,982,311,819.49/67,086.56
  6. Step 6: Final answer
    x = 29,548.57

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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.