Home / 85,110.50-117,452.58-49,302.56

Finding the Fourth Proportional to 85,110.50, 117,452.58 and 49,302.56

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Solution

The fourth proportional to 85,110.50, 117,452.58 and 49,302.56 is: 68,037.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,110.50 : 117,452.58 = 49,302.56 : x
  2. Step 2: Convert to fraction form
    85,110.50/117,452.58 = 49,302.56/x
  3. Step 3: Cross multiply
    85,110.50x = 117,452.58 × 49,302.56
  4. Step 4: Simplify right side
    85,110.50x = 5,790,712,872.60
  5. Step 5: Solve for x
    x = 5,790,712,872.60/85,110.50
  6. Step 6: Final answer
    x = 68,037.58

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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.