Home / 54,110.20-81,165.30-30,782.20

Finding the Fourth Proportional to 54,110.20, 81,165.30 and 30,782.20

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Solution

The fourth proportional to 54,110.20, 81,165.30 and 30,782.20 is: 46,173.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,110.20 : 81,165.30 = 30,782.20 : x
  2. Step 2: Convert to fraction form
    54,110.20/81,165.30 = 30,782.20/x
  3. Step 3: Cross multiply
    54,110.20x = 81,165.30 × 30,782.20
  4. Step 4: Simplify right side
    54,110.20x = 2,498,446,497.66
  5. Step 5: Solve for x
    x = 2,498,446,497.66/54,110.20
  6. Step 6: Final answer
    x = 46,173.30

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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.