Home / 54,743.76-75,553.14-30,870

Finding the Fourth Proportional to 54,743.76, 75,553.14 and 30,870

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Solution

The fourth proportional to 54,743.76, 75,553.14 and 30,870 is: 42,604.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,743.76 : 75,553.14 = 30,870 : x
  2. Step 2: Convert to fraction form
    54,743.76/75,553.14 = 30,870/x
  3. Step 3: Cross multiply
    54,743.76x = 75,553.14 × 30,870
  4. Step 4: Simplify right side
    54,743.76x = 2,332,325,431.80
  5. Step 5: Solve for x
    x = 2,332,325,431.80/54,743.76
  6. Step 6: Final answer
    x = 42,604.41

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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.