Home / 54,041.61-81,006.99-20,752.71

Finding the Fourth Proportional to 54,041.61, 81,006.99 and 20,752.71

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Solution

The fourth proportional to 54,041.61, 81,006.99 and 20,752.71 is: 31,107.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,041.61 : 81,006.99 = 20,752.71 : x
  2. Step 2: Convert to fraction form
    54,041.61/81,006.99 = 20,752.71/x
  3. Step 3: Cross multiply
    54,041.61x = 81,006.99 × 20,752.71
  4. Step 4: Simplify right side
    54,041.61x = 1,681,114,571.44
  5. Step 5: Solve for x
    x = 1,681,114,571.44/54,041.61
  6. Step 6: Final answer
    x = 31,107.78

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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.