Home / 79,539.05-119,305.84-20,375.23

Finding the Fourth Proportional to 79,539.05, 119,305.84 and 20,375.23

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Solution

The fourth proportional to 79,539.05, 119,305.84 and 20,375.23 is: 30,562.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,539.05 : 119,305.84 = 20,375.23 : x
  2. Step 2: Convert to fraction form
    79,539.05/119,305.84 = 20,375.23/x
  3. Step 3: Cross multiply
    79,539.05x = 119,305.84 × 20,375.23
  4. Step 4: Simplify right side
    79,539.05x = 2,430,883,930.34
  5. Step 5: Solve for x
    x = 2,430,883,930.34/79,539.05
  6. Step 6: Final answer
    x = 30,562.14

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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.