Home / 54,469.52-81,709.32-21,192.08

Finding the Fourth Proportional to 54,469.52, 81,709.32 and 21,192.08

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Solution

The fourth proportional to 54,469.52, 81,709.32 and 21,192.08 is: 31,790.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,469.52 : 81,709.32 = 21,192.08 : x
  2. Step 2: Convert to fraction form
    54,469.52/81,709.32 = 21,192.08/x
  3. Step 3: Cross multiply
    54,469.52x = 81,709.32 × 21,192.08
  4. Step 4: Simplify right side
    54,469.52x = 1,731,590,446.19
  5. Step 5: Solve for x
    x = 1,731,590,446.19/54,469.52
  6. Step 6: Final answer
    x = 31,790.08

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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.