Home / 77,164.21-106,450.64-49,949.07

Finding the Fourth Proportional to 77,164.21, 106,450.64 and 49,949.07

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Solution

The fourth proportional to 77,164.21, 106,450.64 and 49,949.07 is: 68,906.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,164.21 : 106,450.64 = 49,949.07 : x
  2. Step 2: Convert to fraction form
    77,164.21/106,450.64 = 49,949.07/x
  3. Step 3: Cross multiply
    77,164.21x = 106,450.64 × 49,949.07
  4. Step 4: Simplify right side
    77,164.21x = 5,317,110,593.78
  5. Step 5: Solve for x
    x = 5,317,110,593.78/77,164.21
  6. Step 6: Final answer
    x = 68,906.44

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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.