Home / 45,838.38-68,668.11-21,788.49

Finding the Fourth Proportional to 45,838.38, 68,668.11 and 21,788.49

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Solution

The fourth proportional to 45,838.38, 68,668.11 and 21,788.49 is: 32,640.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,838.38 : 68,668.11 = 21,788.49 : x
  2. Step 2: Convert to fraction form
    45,838.38/68,668.11 = 21,788.49/x
  3. Step 3: Cross multiply
    45,838.38x = 68,668.11 × 21,788.49
  4. Step 4: Simplify right side
    45,838.38x = 1,496,174,428.05
  5. Step 5: Solve for x
    x = 1,496,174,428.05/45,838.38
  6. Step 6: Final answer
    x = 32,640.21

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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.