Home / 71,783.99-99,067.20-41,579.09

Finding the Fourth Proportional to 71,783.99, 99,067.20 and 41,579.09

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Solution

The fourth proportional to 71,783.99, 99,067.20 and 41,579.09 is: 57,382.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,783.99 : 99,067.20 = 41,579.09 : x
  2. Step 2: Convert to fraction form
    71,783.99/99,067.20 = 41,579.09/x
  3. Step 3: Cross multiply
    71,783.99x = 99,067.20 × 41,579.09
  4. Step 4: Simplify right side
    71,783.99x = 4,119,123,978.97
  5. Step 5: Solve for x
    x = 4,119,123,978.97/71,783.99
  6. Step 6: Final answer
    x = 57,382.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.