Home / 69,161.27-103,575.58-39,489.17

Finding the Fourth Proportional to 69,161.27, 103,575.58 and 39,489.17

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Solution

The fourth proportional to 69,161.27, 103,575.58 and 39,489.17 is: 59,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,161.27 : 103,575.58 = 39,489.17 : x
  2. Step 2: Convert to fraction form
    69,161.27/103,575.58 = 39,489.17/x
  3. Step 3: Cross multiply
    69,161.27x = 103,575.58 × 39,489.17
  4. Step 4: Simplify right side
    69,161.27x = 4,090,113,168.59
  5. Step 5: Solve for x
    x = 4,090,113,168.59/69,161.27
  6. Step 6: Final answer
    x = 59,138.78

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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.