Home / 54,555.32-81,834.35-15,112.78

Finding the Fourth Proportional to 54,555.32, 81,834.35 and 15,112.78

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Solution

The fourth proportional to 54,555.32, 81,834.35 and 15,112.78 is: 22,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,555.32 : 81,834.35 = 15,112.78 : x
  2. Step 2: Convert to fraction form
    54,555.32/81,834.35 = 15,112.78/x
  3. Step 3: Cross multiply
    54,555.32x = 81,834.35 × 15,112.78
  4. Step 4: Simplify right side
    54,555.32x = 1,236,744,247.84
  5. Step 5: Solve for x
    x = 1,236,744,247.84/54,555.32
  6. Step 6: Final answer
    x = 22,669.54

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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.