Home / 45,581.06-68,378.82-19,286

Finding the Fourth Proportional to 45,581.06, 68,378.82 and 19,286

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Solution

The fourth proportional to 45,581.06, 68,378.82 and 19,286 is: 28,932.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,581.06 : 68,378.82 = 19,286 : x
  2. Step 2: Convert to fraction form
    45,581.06/68,378.82 = 19,286/x
  3. Step 3: Cross multiply
    45,581.06x = 68,378.82 × 19,286
  4. Step 4: Simplify right side
    45,581.06x = 1,318,753,922.52
  5. Step 5: Solve for x
    x = 1,318,753,922.52/45,581.06
  6. Step 6: Final answer
    x = 28,932.06

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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.