Home / 85,104.72-117,435.60-49,306.32

Finding the Fourth Proportional to 85,104.72, 117,435.60 and 49,306.32

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Solution

The fourth proportional to 85,104.72, 117,435.60 and 49,306.32 is: 68,037.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,104.72 : 117,435.60 = 49,306.32 : x
  2. Step 2: Convert to fraction form
    85,104.72/117,435.60 = 49,306.32/x
  3. Step 3: Cross multiply
    85,104.72x = 117,435.60 × 49,306.32
  4. Step 4: Simplify right side
    85,104.72x = 5,790,317,272.99
  5. Step 5: Solve for x
    x = 5,790,317,272.99/85,104.72
  6. Step 6: Final answer
    x = 68,037.56

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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.