Home / 72,220.49-108,344.30-32,780.37

Finding the Fourth Proportional to 72,220.49, 108,344.30 and 32,780.37

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Solution

The fourth proportional to 72,220.49, 108,344.30 and 32,780.37 is: 49,176.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,220.49 : 108,344.30 = 32,780.37 : x
  2. Step 2: Convert to fraction form
    72,220.49/108,344.30 = 32,780.37/x
  3. Step 3: Cross multiply
    72,220.49x = 108,344.30 × 32,780.37
  4. Step 4: Simplify right side
    72,220.49x = 3,551,566,077.49
  5. Step 5: Solve for x
    x = 3,551,566,077.49/72,220.49
  6. Step 6: Final answer
    x = 49,176.71

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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.