Home / 80,833.44-111,549.88-45,021.32

Finding the Fourth Proportional to 80,833.44, 111,549.88 and 45,021.32

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Solution

The fourth proportional to 80,833.44, 111,549.88 and 45,021.32 is: 62,129.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,833.44 : 111,549.88 = 45,021.32 : x
  2. Step 2: Convert to fraction form
    80,833.44/111,549.88 = 45,021.32/x
  3. Step 3: Cross multiply
    80,833.44x = 111,549.88 × 45,021.32
  4. Step 4: Simplify right side
    80,833.44x = 5,022,122,843.44
  5. Step 5: Solve for x
    x = 5,022,122,843.44/80,833.44
  6. Step 6: Final answer
    x = 62,129.27

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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.