Home / 74,617.47-111,930.57-21,305.34

Finding the Fourth Proportional to 74,617.47, 111,930.57 and 21,305.34

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Solution

The fourth proportional to 74,617.47, 111,930.57 and 21,305.34 is: 31,959.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,617.47 : 111,930.57 = 21,305.34 : x
  2. Step 2: Convert to fraction form
    74,617.47/111,930.57 = 21,305.34/x
  3. Step 3: Cross multiply
    74,617.47x = 111,930.57 × 21,305.34
  4. Step 4: Simplify right side
    74,617.47x = 2,384,718,850.24
  5. Step 5: Solve for x
    x = 2,384,718,850.24/74,617.47
  6. Step 6: Final answer
    x = 31,959.26

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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.