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Finding the Fourth Proportional to 85,132.48, 127,757.04 and 29,728.48

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Solution

The fourth proportional to 85,132.48, 127,757.04 and 29,728.48 is: 44,613.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,132.48 : 127,757.04 = 29,728.48 : x
  2. Step 2: Convert to fraction form
    85,132.48/127,757.04 = 29,728.48/x
  3. Step 3: Cross multiply
    85,132.48x = 127,757.04 × 29,728.48
  4. Step 4: Simplify right side
    85,132.48x = 3,798,022,608.50
  5. Step 5: Solve for x
    x = 3,798,022,608.50/85,132.48
  6. Step 6: Final answer
    x = 44,613.09

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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.