Home / 60,209.26-90,331.71-20,770.36

Finding the Fourth Proportional to 60,209.26, 90,331.71 and 20,770.36

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Solution

The fourth proportional to 60,209.26, 90,331.71 and 20,770.36 is: 31,161.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,209.26 : 90,331.71 = 20,770.36 : x
  2. Step 2: Convert to fraction form
    60,209.26/90,331.71 = 20,770.36/x
  3. Step 3: Cross multiply
    60,209.26x = 90,331.71 × 20,770.36
  4. Step 4: Simplify right side
    60,209.26x = 1,876,222,136.12
  5. Step 5: Solve for x
    x = 1,876,222,136.12/60,209.26
  6. Step 6: Final answer
    x = 31,161.69

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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.