Home / 54,028.58-80,987.44-20,739.68

Finding the Fourth Proportional to 54,028.58, 80,987.44 and 20,739.68

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Solution

The fourth proportional to 54,028.58, 80,987.44 and 20,739.68 is: 31,088.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,028.58 : 80,987.44 = 20,739.68 : x
  2. Step 2: Convert to fraction form
    54,028.58/80,987.44 = 20,739.68/x
  3. Step 3: Cross multiply
    54,028.58x = 80,987.44 × 20,739.68
  4. Step 4: Simplify right side
    54,028.58x = 1,679,653,553.20
  5. Step 5: Solve for x
    x = 1,679,653,553.20/54,028.58
  6. Step 6: Final answer
    x = 31,088.24

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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.