Home / 54,122.26-81,132.36-19,039.54

Finding the Fourth Proportional to 54,122.26, 81,132.36 and 19,039.54

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Solution

The fourth proportional to 54,122.26, 81,132.36 and 19,039.54 is: 28,541.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,122.26 : 81,132.36 = 19,039.54 : x
  2. Step 2: Convert to fraction form
    54,122.26/81,132.36 = 19,039.54/x
  3. Step 3: Cross multiply
    54,122.26x = 81,132.36 × 19,039.54
  4. Step 4: Simplify right side
    54,122.26x = 1,544,722,813.51
  5. Step 5: Solve for x
    x = 1,544,722,813.51/54,122.26
  6. Step 6: Final answer
    x = 28,541.36

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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.