Home / 51,085.68-76,638.24-19,919.04

Finding the Fourth Proportional to 51,085.68, 76,638.24 and 19,919.04

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Solution

The fourth proportional to 51,085.68, 76,638.24 and 19,919.04 is: 29,882.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,085.68 : 76,638.24 = 19,919.04 : x
  2. Step 2: Convert to fraction form
    51,085.68/76,638.24 = 19,919.04/x
  3. Step 3: Cross multiply
    51,085.68x = 76,638.24 × 19,919.04
  4. Step 4: Simplify right side
    51,085.68x = 1,526,560,168.09
  5. Step 5: Solve for x
    x = 1,526,560,168.09/51,085.68
  6. Step 6: Final answer
    x = 29,882.35

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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.