Home / 80,821.22-111,529.05-45,010.58

Finding the Fourth Proportional to 80,821.22, 111,529.05 and 45,010.58

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Solution

The fourth proportional to 80,821.22, 111,529.05 and 45,010.58 is: 62,112.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,821.22 : 111,529.05 = 45,010.58 : x
  2. Step 2: Convert to fraction form
    80,821.22/111,529.05 = 45,010.58/x
  3. Step 3: Cross multiply
    80,821.22x = 111,529.05 × 45,010.58
  4. Step 4: Simplify right side
    80,821.22x = 5,019,987,227.35
  5. Step 5: Solve for x
    x = 5,019,987,227.35/80,821.22
  6. Step 6: Final answer
    x = 62,112.24

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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.