Home / 40,123.44-55,369.66-22,218.06

Finding the Fourth Proportional to 40,123.44, 55,369.66 and 22,218.06

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Solution

The fourth proportional to 40,123.44, 55,369.66 and 22,218.06 is: 30,660.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,123.44 : 55,369.66 = 22,218.06 : x
  2. Step 2: Convert to fraction form
    40,123.44/55,369.66 = 22,218.06/x
  3. Step 3: Cross multiply
    40,123.44x = 55,369.66 × 22,218.06
  4. Step 4: Simplify right side
    40,123.44x = 1,230,206,345.18
  5. Step 5: Solve for x
    x = 1,230,206,345.18/40,123.44
  6. Step 6: Final answer
    x = 30,660.54

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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.