Home / 55,261.33-82,883.64-20,192.78

Finding the Fourth Proportional to 55,261.33, 82,883.64 and 20,192.78

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Solution

The fourth proportional to 55,261.33, 82,883.64 and 20,192.78 is: 30,286.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,261.33 : 82,883.64 = 20,192.78 : x
  2. Step 2: Convert to fraction form
    55,261.33/82,883.64 = 20,192.78/x
  3. Step 3: Cross multiply
    55,261.33x = 82,883.64 × 20,192.78
  4. Step 4: Simplify right side
    55,261.33x = 1,673,651,108.12
  5. Step 5: Solve for x
    x = 1,673,651,108.12/55,261.33
  6. Step 6: Final answer
    x = 30,286.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.