Home / 85,137.50-117,489.72-49,348.26

Finding the Fourth Proportional to 85,137.50, 117,489.72 and 49,348.26

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Solution

The fourth proportional to 85,137.50, 117,489.72 and 49,348.26 is: 68,100.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,137.50 : 117,489.72 = 49,348.26 : x
  2. Step 2: Convert to fraction form
    85,137.50/117,489.72 = 49,348.26/x
  3. Step 3: Cross multiply
    85,137.50x = 117,489.72 × 49,348.26
  4. Step 4: Simplify right side
    85,137.50x = 5,797,913,249.89
  5. Step 5: Solve for x
    x = 5,797,913,249.89/85,137.50
  6. Step 6: Final answer
    x = 68,100.58

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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.