Home / 73,142.35-109,709.88-25,759.78

Finding the Fourth Proportional to 73,142.35, 109,709.88 and 25,759.78

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Solution

The fourth proportional to 73,142.35, 109,709.88 and 25,759.78 is: 38,638.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,142.35 : 109,709.88 = 25,759.78 : x
  2. Step 2: Convert to fraction form
    73,142.35/109,709.88 = 25,759.78/x
  3. Step 3: Cross multiply
    73,142.35x = 109,709.88 × 25,759.78
  4. Step 4: Simplify right side
    73,142.35x = 2,826,102,372.63
  5. Step 5: Solve for x
    x = 2,826,102,372.63/73,142.35
  6. Step 6: Final answer
    x = 38,638.39

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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.