Home / 85,187.70-117,550.44-49,388.94

Finding the Fourth Proportional to 85,187.70, 117,550.44 and 49,388.94

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Solution

The fourth proportional to 85,187.70, 117,550.44 and 49,388.94 is: 68,151.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,187.70 : 117,550.44 = 49,388.94 : x
  2. Step 2: Convert to fraction form
    85,187.70/117,550.44 = 49,388.94/x
  3. Step 3: Cross multiply
    85,187.70x = 117,550.44 × 49,388.94
  4. Step 4: Simplify right side
    85,187.70x = 5,805,691,628.13
  5. Step 5: Solve for x
    x = 5,805,691,628.13/85,187.70
  6. Step 6: Final answer
    x = 68,151.76

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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.