Home / 54,069.60-81,104.40-19,012.80

Finding the Fourth Proportional to 54,069.60, 81,104.40 and 19,012.80

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Solution

The fourth proportional to 54,069.60, 81,104.40 and 19,012.80 is: 28,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,069.60 : 81,104.40 = 19,012.80 : x
  2. Step 2: Convert to fraction form
    54,069.60/81,104.40 = 19,012.80/x
  3. Step 3: Cross multiply
    54,069.60x = 81,104.40 × 19,012.80
  4. Step 4: Simplify right side
    54,069.60x = 1,542,021,736.32
  5. Step 5: Solve for x
    x = 1,542,021,736.32/54,069.60
  6. Step 6: Final answer
    x = 28,519.20

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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.