Home / 45,105.53-67,613.67-21,371.38

Finding the Fourth Proportional to 45,105.53, 67,613.67 and 21,371.38

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Solution

The fourth proportional to 45,105.53, 67,613.67 and 21,371.38 is: 32,035.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,105.53 : 67,613.67 = 21,371.38 : x
  2. Step 2: Convert to fraction form
    45,105.53/67,613.67 = 21,371.38/x
  3. Step 3: Cross multiply
    45,105.53x = 67,613.67 × 21,371.38
  4. Step 4: Simplify right side
    45,105.53x = 1,444,997,265.73
  5. Step 5: Solve for x
    x = 1,444,997,265.73/45,105.53
  6. Step 6: Final answer
    x = 32,035.93

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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.