Home / 77,388.09-106,756.25-50,546.31

Finding the Fourth Proportional to 77,388.09, 106,756.25 and 50,546.31

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Solution

The fourth proportional to 77,388.09, 106,756.25 and 50,546.31 is: 69,728.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,388.09 : 106,756.25 = 50,546.31 : x
  2. Step 2: Convert to fraction form
    77,388.09/106,756.25 = 50,546.31/x
  3. Step 3: Cross multiply
    77,388.09x = 106,756.25 × 50,546.31
  4. Step 4: Simplify right side
    77,388.09x = 5,396,134,506.94
  5. Step 5: Solve for x
    x = 5,396,134,506.94/77,388.09
  6. Step 6: Final answer
    x = 69,728.23

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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.