Home / 85,245.72-117,645.51-49,435.43

Finding the Fourth Proportional to 85,245.72, 117,645.51 and 49,435.43

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Solution

The fourth proportional to 85,245.72, 117,645.51 and 49,435.43 is: 68,224.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,245.72 : 117,645.51 = 49,435.43 : x
  2. Step 2: Convert to fraction form
    85,245.72/117,645.51 = 49,435.43/x
  3. Step 3: Cross multiply
    85,245.72x = 117,645.51 × 49,435.43
  4. Step 4: Simplify right side
    85,245.72x = 5,815,855,786.19
  5. Step 5: Solve for x
    x = 5,815,855,786.19/85,245.72
  6. Step 6: Final answer
    x = 68,224.61

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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.