Home / 45,270.67-67,907.39-21,580.81

Finding the Fourth Proportional to 45,270.67, 67,907.39 and 21,580.81

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Solution

The fourth proportional to 45,270.67, 67,907.39 and 21,580.81 is: 32,371.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,270.67 : 67,907.39 = 21,580.81 : x
  2. Step 2: Convert to fraction form
    45,270.67/67,907.39 = 21,580.81/x
  3. Step 3: Cross multiply
    45,270.67x = 67,907.39 × 21,580.81
  4. Step 4: Simplify right side
    45,270.67x = 1,465,496,481.19
  5. Step 5: Solve for x
    x = 1,465,496,481.19/45,270.67
  6. Step 6: Final answer
    x = 32,371.88

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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.