Home / 80,741.20-111,400.48-48,467.44

Finding the Fourth Proportional to 80,741.20, 111,400.48 and 48,467.44

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Solution

The fourth proportional to 80,741.20, 111,400.48 and 48,467.44 is: 66,871.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,741.20 : 111,400.48 = 48,467.44 : x
  2. Step 2: Convert to fraction form
    80,741.20/111,400.48 = 48,467.44/x
  3. Step 3: Cross multiply
    80,741.20x = 111,400.48 × 48,467.44
  4. Step 4: Simplify right side
    80,741.20x = 5,399,296,080.37
  5. Step 5: Solve for x
    x = 5,399,296,080.37/80,741.20
  6. Step 6: Final answer
    x = 66,871.64

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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.