Home / 54,161.21-81,218.58-18,626.11

Finding the Fourth Proportional to 54,161.21, 81,218.58 and 18,626.11

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Solution

The fourth proportional to 54,161.21, 81,218.58 and 18,626.11 is: 27,931.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,161.21 : 81,218.58 = 18,626.11 : x
  2. Step 2: Convert to fraction form
    54,161.21/81,218.58 = 18,626.11/x
  3. Step 3: Cross multiply
    54,161.21x = 81,218.58 × 18,626.11
  4. Step 4: Simplify right side
    54,161.21x = 1,512,785,799.03
  5. Step 5: Solve for x
    x = 1,512,785,799.03/54,161.21
  6. Step 6: Final answer
    x = 27,931.17

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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.