Home / 83,868.82-125,803.23-21,539.38

Finding the Fourth Proportional to 83,868.82, 125,803.23 and 21,539.38

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Solution

The fourth proportional to 83,868.82, 125,803.23 and 21,539.38 is: 32,309.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,868.82 : 125,803.23 = 21,539.38 : x
  2. Step 2: Convert to fraction form
    83,868.82/125,803.23 = 21,539.38/x
  3. Step 3: Cross multiply
    83,868.82x = 125,803.23 × 21,539.38
  4. Step 4: Simplify right side
    83,868.82x = 2,709,723,576.20
  5. Step 5: Solve for x
    x = 2,709,723,576.20/83,868.82
  6. Step 6: Final answer
    x = 32,309.07

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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.