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Finding the Fourth Proportional to 79,704.78, 119,570.13 and 27,108.78

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Solution

The fourth proportional to 79,704.78, 119,570.13 and 27,108.78 is: 40,667.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,704.78 : 119,570.13 = 27,108.78 : x
  2. Step 2: Convert to fraction form
    79,704.78/119,570.13 = 27,108.78/x
  3. Step 3: Cross multiply
    79,704.78x = 119,570.13 × 27,108.78
  4. Step 4: Simplify right side
    79,704.78x = 3,241,400,348.74
  5. Step 5: Solve for x
    x = 3,241,400,348.74/79,704.78
  6. Step 6: Final answer
    x = 40,667.58

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1.5x scale

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.