Home / 54,189.99-81,179.81-39,932.59

Finding the Fourth Proportional to 54,189.99, 81,179.81 and 39,932.59

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Solution

The fourth proportional to 54,189.99, 81,179.81 and 39,932.59 is: 59,821.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,189.99 : 81,179.81 = 39,932.59 : x
  2. Step 2: Convert to fraction form
    54,189.99/81,179.81 = 39,932.59/x
  3. Step 3: Cross multiply
    54,189.99x = 81,179.81 × 39,932.59
  4. Step 4: Simplify right side
    54,189.99x = 3,241,720,069.01
  5. Step 5: Solve for x
    x = 3,241,720,069.01/54,189.99
  6. Step 6: Final answer
    x = 59,821.39

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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.