Home / 80,621.44-111,240.48-47,072.32

Finding the Fourth Proportional to 80,621.44, 111,240.48 and 47,072.32

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Solution

The fourth proportional to 80,621.44, 111,240.48 and 47,072.32 is: 64,949.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,621.44 : 111,240.48 = 47,072.32 : x
  2. Step 2: Convert to fraction form
    80,621.44/111,240.48 = 47,072.32/x
  3. Step 3: Cross multiply
    80,621.44x = 111,240.48 × 47,072.32
  4. Step 4: Simplify right side
    80,621.44x = 5,236,347,471.51
  5. Step 5: Solve for x
    x = 5,236,347,471.51/80,621.44
  6. Step 6: Final answer
    x = 64,949.81

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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.