Home / 79,344.61-119,016.40-20,179.77

Finding the Fourth Proportional to 79,344.61, 119,016.40 and 20,179.77

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Solution

The fourth proportional to 79,344.61, 119,016.40 and 20,179.77 is: 30,269.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,344.61 : 119,016.40 = 20,179.77 : x
  2. Step 2: Convert to fraction form
    79,344.61/119,016.40 = 20,179.77/x
  3. Step 3: Cross multiply
    79,344.61x = 119,016.40 × 20,179.77
  4. Step 4: Simplify right side
    79,344.61x = 2,401,723,578.23
  5. Step 5: Solve for x
    x = 2,401,723,578.23/79,344.61
  6. Step 6: Final answer
    x = 30,269.52

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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.