Home / 45,139.92-62,227.80-31,669.44

Finding the Fourth Proportional to 45,139.92, 62,227.80 and 31,669.44

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Solution

The fourth proportional to 45,139.92, 62,227.80 and 31,669.44 is: 43,658.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,139.92 : 62,227.80 = 31,669.44 : x
  2. Step 2: Convert to fraction form
    45,139.92/62,227.80 = 31,669.44/x
  3. Step 3: Cross multiply
    45,139.92x = 62,227.80 × 31,669.44
  4. Step 4: Simplify right side
    45,139.92x = 1,970,719,578.43
  5. Step 5: Solve for x
    x = 1,970,719,578.43/45,139.92
  6. Step 6: Final answer
    x = 43,658.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.