Home / 77,388.59-106,756.94-50,546.81

Finding the Fourth Proportional to 77,388.59, 106,756.94 and 50,546.81

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Solution

The fourth proportional to 77,388.59, 106,756.94 and 50,546.81 is: 69,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,388.59 : 106,756.94 = 50,546.81 : x
  2. Step 2: Convert to fraction form
    77,388.59/106,756.94 = 50,546.81/x
  3. Step 3: Cross multiply
    77,388.59x = 106,756.94 × 50,546.81
  4. Step 4: Simplify right side
    77,388.59x = 5,396,221,975.84
  5. Step 5: Solve for x
    x = 5,396,221,975.84/77,388.59
  6. Step 6: Final answer
    x = 69,728.91

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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.