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Finding the Fourth Proportional to 67,162.77, 100,759.14 and 20,419.29

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Solution

The fourth proportional to 67,162.77, 100,759.14 and 20,419.29 is: 30,633.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,162.77 : 100,759.14 = 20,419.29 : x
  2. Step 2: Convert to fraction form
    67,162.77/100,759.14 = 20,419.29/x
  3. Step 3: Cross multiply
    67,162.77x = 100,759.14 × 20,419.29
  4. Step 4: Simplify right side
    67,162.77x = 2,057,430,099.81
  5. Step 5: Solve for x
    x = 2,057,430,099.81/67,162.77
  6. Step 6: Final answer
    x = 30,633.49

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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.