Home / 69,161.50-103,742.34-19,241.60

Finding the Fourth Proportional to 69,161.50, 103,742.34 and 19,241.60

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Solution

The fourth proportional to 69,161.50, 103,742.34 and 19,241.60 is: 28,862.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,161.50 : 103,742.34 = 19,241.60 : x
  2. Step 2: Convert to fraction form
    69,161.50/103,742.34 = 19,241.60/x
  3. Step 3: Cross multiply
    69,161.50x = 103,742.34 × 19,241.60
  4. Step 4: Simplify right side
    69,161.50x = 1,996,168,609.34
  5. Step 5: Solve for x
    x = 1,996,168,609.34/69,161.50
  6. Step 6: Final answer
    x = 28,862.43

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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.