Home / 79,513.20-119,269.68-20,346.96

Finding the Fourth Proportional to 79,513.20, 119,269.68 and 20,346.96

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Solution

The fourth proportional to 79,513.20, 119,269.68 and 20,346.96 is: 30,520.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,513.20 : 119,269.68 = 20,346.96 : x
  2. Step 2: Convert to fraction form
    79,513.20/119,269.68 = 20,346.96/x
  3. Step 3: Cross multiply
    79,513.20x = 119,269.68 × 20,346.96
  4. Step 4: Simplify right side
    79,513.20x = 2,426,775,408.17
  5. Step 5: Solve for x
    x = 2,426,775,408.17/79,513.20
  6. Step 6: Final answer
    x = 30,520.41

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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.