Home / 80,069.38-120,146.90-51,982.83

Finding the Fourth Proportional to 80,069.38, 120,146.90 and 51,982.83

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Solution

The fourth proportional to 80,069.38, 120,146.90 and 51,982.83 is: 78,002.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,069.38 : 120,146.90 = 51,982.83 : x
  2. Step 2: Convert to fraction form
    80,069.38/120,146.90 = 51,982.83/x
  3. Step 3: Cross multiply
    80,069.38x = 120,146.90 × 51,982.83
  4. Step 4: Simplify right side
    80,069.38x = 6,245,575,617.81
  5. Step 5: Solve for x
    x = 6,245,575,617.81/80,069.38
  6. Step 6: Final answer
    x = 78,002.05

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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.