Home / 54,107.32-81,161.82-19,047.40

Finding the Fourth Proportional to 54,107.32, 81,161.82 and 19,047.40

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Solution

The fourth proportional to 54,107.32, 81,161.82 and 19,047.40 is: 28,571.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,107.32 : 81,161.82 = 19,047.40 : x
  2. Step 2: Convert to fraction form
    54,107.32/81,161.82 = 19,047.40/x
  3. Step 3: Cross multiply
    54,107.32x = 81,161.82 × 19,047.40
  4. Step 4: Simplify right side
    54,107.32x = 1,545,921,650.27
  5. Step 5: Solve for x
    x = 1,545,921,650.27/54,107.32
  6. Step 6: Final answer
    x = 28,571.40

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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.