Home / 109,879.39-164,796-30,972.43

Finding the Fourth Proportional to 109,879.39, 164,796 and 30,972.43

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Solution

The fourth proportional to 109,879.39, 164,796 and 30,972.43 is: 46,452.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,879.39 : 164,796 = 30,972.43 : x
  2. Step 2: Convert to fraction form
    109,879.39/164,796 = 30,972.43/x
  3. Step 3: Cross multiply
    109,879.39x = 164,796 × 30,972.43
  4. Step 4: Simplify right side
    109,879.39x = 5,104,132,574.28
  5. Step 5: Solve for x
    x = 5,104,132,574.28/109,879.39
  6. Step 6: Final answer
    x = 46,452.14

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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.