Home / 80,972.51-111,742.07-45,162.54

Finding the Fourth Proportional to 80,972.51, 111,742.07 and 45,162.54

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Solution

The fourth proportional to 80,972.51, 111,742.07 and 45,162.54 is: 62,324.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,972.51 : 111,742.07 = 45,162.54 : x
  2. Step 2: Convert to fraction form
    80,972.51/111,742.07 = 45,162.54/x
  3. Step 3: Cross multiply
    80,972.51x = 111,742.07 × 45,162.54
  4. Step 4: Simplify right side
    80,972.51x = 5,046,555,480.25
  5. Step 5: Solve for x
    x = 5,046,555,480.25/80,972.51
  6. Step 6: Final answer
    x = 62,324.31

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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.