Home / 54,128.20-81,205.10-17,192.20

Finding the Fourth Proportional to 54,128.20, 81,205.10 and 17,192.20

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Solution

The fourth proportional to 54,128.20, 81,205.10 and 17,192.20 is: 25,792.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,128.20 : 81,205.10 = 17,192.20 : x
  2. Step 2: Convert to fraction form
    54,128.20/81,205.10 = 17,192.20/x
  3. Step 3: Cross multiply
    54,128.20x = 81,205.10 × 17,192.20
  4. Step 4: Simplify right side
    54,128.20x = 1,396,094,320.22
  5. Step 5: Solve for x
    x = 1,396,094,320.22/54,128.20
  6. Step 6: Final answer
    x = 25,792.37

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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.