Home / 54,352.50-81,540.45-16,911.78

Finding the Fourth Proportional to 54,352.50, 81,540.45 and 16,911.78

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Solution

The fourth proportional to 54,352.50, 81,540.45 and 16,911.78 is: 25,371.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,352.50 : 81,540.45 = 16,911.78 : x
  2. Step 2: Convert to fraction form
    54,352.50/81,540.45 = 16,911.78/x
  3. Step 3: Cross multiply
    54,352.50x = 81,540.45 × 16,911.78
  4. Step 4: Simplify right side
    54,352.50x = 1,378,994,151.50
  5. Step 5: Solve for x
    x = 1,378,994,151.50/54,352.50
  6. Step 6: Final answer
    x = 25,371.31

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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.