Home / 45,186.39-67,687.11-21,136.14

Finding the Fourth Proportional to 45,186.39, 67,687.11 and 21,136.14

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Solution

The fourth proportional to 45,186.39, 67,687.11 and 21,136.14 is: 31,660.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,186.39 : 67,687.11 = 21,136.14 : x
  2. Step 2: Convert to fraction form
    45,186.39/67,687.11 = 21,136.14/x
  3. Step 3: Cross multiply
    45,186.39x = 67,687.11 × 21,136.14
  4. Step 4: Simplify right side
    45,186.39x = 1,430,644,233.16
  5. Step 5: Solve for x
    x = 1,430,644,233.16/45,186.39
  6. Step 6: Final answer
    x = 31,660.95

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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.