Home / 83,869.82-125,804.73-21,540.38

Finding the Fourth Proportional to 83,869.82, 125,804.73 and 21,540.38

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Solution

The fourth proportional to 83,869.82, 125,804.73 and 21,540.38 is: 32,310.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,869.82 : 125,804.73 = 21,540.38 : x
  2. Step 2: Convert to fraction form
    83,869.82/125,804.73 = 21,540.38/x
  3. Step 3: Cross multiply
    83,869.82x = 125,804.73 × 21,540.38
  4. Step 4: Simplify right side
    83,869.82x = 2,709,881,690.00
  5. Step 5: Solve for x
    x = 2,709,881,690.00/83,869.82
  6. Step 6: Final answer
    x = 32,310.57

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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.