Home / 83,972.69-125,959.49-21,643.19

Finding the Fourth Proportional to 83,972.69, 125,959.49 and 21,643.19

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Solution

The fourth proportional to 83,972.69, 125,959.49 and 21,643.19 is: 32,464.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,972.69 : 125,959.49 = 21,643.19 : x
  2. Step 2: Convert to fraction form
    83,972.69/125,959.49 = 21,643.19/x
  3. Step 3: Cross multiply
    83,972.69x = 125,959.49 × 21,643.19
  4. Step 4: Simplify right side
    83,972.69x = 2,726,165,174.37
  5. Step 5: Solve for x
    x = 2,726,165,174.37/83,972.69
  6. Step 6: Final answer
    x = 32,464.90

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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.