Home / 85,108.24-127,720.68-29,704.24

Finding the Fourth Proportional to 85,108.24, 127,720.68 and 29,704.24

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Solution

The fourth proportional to 85,108.24, 127,720.68 and 29,704.24 is: 44,576.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,108.24 : 127,720.68 = 29,704.24 : x
  2. Step 2: Convert to fraction form
    85,108.24/127,720.68 = 29,704.24/x
  3. Step 3: Cross multiply
    85,108.24x = 127,720.68 × 29,704.24
  4. Step 4: Simplify right side
    85,108.24x = 3,793,845,731.68
  5. Step 5: Solve for x
    x = 3,793,845,731.68/85,108.24
  6. Step 6: Final answer
    x = 44,576.71

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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.