Home / 85,469.85-117,929.45-49,169.07

Finding the Fourth Proportional to 85,469.85, 117,929.45 and 49,169.07

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Solution

The fourth proportional to 85,469.85, 117,929.45 and 49,169.07 is: 67,842.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,469.85 : 117,929.45 = 49,169.07 : x
  2. Step 2: Convert to fraction form
    85,469.85/117,929.45 = 49,169.07/x
  3. Step 3: Cross multiply
    85,469.85x = 117,929.45 × 49,169.07
  4. Step 4: Simplify right side
    85,469.85x = 5,798,481,382.11
  5. Step 5: Solve for x
    x = 5,798,481,382.11/85,469.85
  6. Step 6: Final answer
    x = 67,842.42

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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.