Home / 79,753.38-109,982.90-52,480.68

Finding the Fourth Proportional to 79,753.38, 109,982.90 and 52,480.68

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Solution

The fourth proportional to 79,753.38, 109,982.90 and 52,480.68 is: 72,372.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,753.38 : 109,982.90 = 52,480.68 : x
  2. Step 2: Convert to fraction form
    79,753.38/109,982.90 = 52,480.68/x
  3. Step 3: Cross multiply
    79,753.38x = 109,982.90 × 52,480.68
  4. Step 4: Simplify right side
    79,753.38x = 5,771,977,380.37
  5. Step 5: Solve for x
    x = 5,771,977,380.37/79,753.38
  6. Step 6: Final answer
    x = 72,372.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.