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Finding the Fourth Proportional to 62,102.78, 85,758.77 and 39,449.07

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Solution

The fourth proportional to 62,102.78, 85,758.77 and 39,449.07 is: 54,475.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,102.78 : 85,758.77 = 39,449.07 : x
  2. Step 2: Convert to fraction form
    62,102.78/85,758.77 = 39,449.07/x
  3. Step 3: Cross multiply
    62,102.78x = 85,758.77 × 39,449.07
  4. Step 4: Simplify right side
    62,102.78x = 3,383,103,523.60
  5. Step 5: Solve for x
    x = 3,383,103,523.60/62,102.78
  6. Step 6: Final answer
    x = 54,475.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.