Home / 73,082.13-109,610.82-20,479.53

Finding the Fourth Proportional to 73,082.13, 109,610.82 and 20,479.53

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Solution

The fourth proportional to 73,082.13, 109,610.82 and 20,479.53 is: 30,715.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,082.13 : 109,610.82 = 20,479.53 : x
  2. Step 2: Convert to fraction form
    73,082.13/109,610.82 = 20,479.53/x
  3. Step 3: Cross multiply
    73,082.13x = 109,610.82 × 20,479.53
  4. Step 4: Simplify right side
    73,082.13x = 2,244,778,076.51
  5. Step 5: Solve for x
    x = 2,244,778,076.51/73,082.13
  6. Step 6: Final answer
    x = 30,715.83

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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.