Home / 82,433.70-123,650.55-52,909.20

Finding the Fourth Proportional to 82,433.70, 123,650.55 and 52,909.20

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Solution

The fourth proportional to 82,433.70, 123,650.55 and 52,909.20 is: 79,363.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,433.70 : 123,650.55 = 52,909.20 : x
  2. Step 2: Convert to fraction form
    82,433.70/123,650.55 = 52,909.20/x
  3. Step 3: Cross multiply
    82,433.70x = 123,650.55 × 52,909.20
  4. Step 4: Simplify right side
    82,433.70x = 6,542,251,680.06
  5. Step 5: Solve for x
    x = 6,542,251,680.06/82,433.70
  6. Step 6: Final answer
    x = 79,363.80

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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.