Home / 45,201.48-67,801.68-21,811.38

Finding the Fourth Proportional to 45,201.48, 67,801.68 and 21,811.38

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Solution

The fourth proportional to 45,201.48, 67,801.68 and 21,811.38 is: 32,716.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,201.48 : 67,801.68 = 21,811.38 : x
  2. Step 2: Convert to fraction form
    45,201.48/67,801.68 = 21,811.38/x
  3. Step 3: Cross multiply
    45,201.48x = 67,801.68 × 21,811.38
  4. Step 4: Simplify right side
    45,201.48x = 1,478,848,207.12
  5. Step 5: Solve for x
    x = 1,478,848,207.12/45,201.48
  6. Step 6: Final answer
    x = 32,716.81

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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.