Home / 54,003.28-81,029.88-20,712.24

Finding the Fourth Proportional to 54,003.28, 81,029.88 and 20,712.24

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Solution

The fourth proportional to 54,003.28, 81,029.88 and 20,712.24 is: 31,077.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,003.28 : 81,029.88 = 20,712.24 : x
  2. Step 2: Convert to fraction form
    54,003.28/81,029.88 = 20,712.24/x
  3. Step 3: Cross multiply
    54,003.28x = 81,029.88 × 20,712.24
  4. Step 4: Simplify right side
    54,003.28x = 1,678,310,321.73
  5. Step 5: Solve for x
    x = 1,678,310,321.73/54,003.28
  6. Step 6: Final answer
    x = 31,077.93

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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.