Home / 85,000.85-117,293.94-49,193.08

Finding the Fourth Proportional to 85,000.85, 117,293.94 and 49,193.08

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Solution

The fourth proportional to 85,000.85, 117,293.94 and 49,193.08 is: 67,882.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,000.85 : 117,293.94 = 49,193.08 : x
  2. Step 2: Convert to fraction form
    85,000.85/117,293.94 = 49,193.08/x
  3. Step 3: Cross multiply
    85,000.85x = 117,293.94 × 49,193.08
  4. Step 4: Simplify right side
    85,000.85x = 5,770,049,880.70
  5. Step 5: Solve for x
    x = 5,770,049,880.70/85,000.85
  6. Step 6: Final answer
    x = 67,882.26

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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.