Home / 80,539.82-120,793.31-30,602.41

Finding the Fourth Proportional to 80,539.82, 120,793.31 and 30,602.41

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Solution

The fourth proportional to 80,539.82, 120,793.31 and 30,602.41 is: 45,897.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,539.82 : 120,793.31 = 30,602.41 : x
  2. Step 2: Convert to fraction form
    80,539.82/120,793.31 = 30,602.41/x
  3. Step 3: Cross multiply
    80,539.82x = 120,793.31 × 30,602.41
  4. Step 4: Simplify right side
    80,539.82x = 3,696,565,640.90
  5. Step 5: Solve for x
    x = 3,696,565,640.90/80,539.82
  6. Step 6: Final answer
    x = 45,897.37

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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.