Home / 54,453.40-81,680.10-41,147.80

Finding the Fourth Proportional to 54,453.40, 81,680.10 and 41,147.80

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Solution

The fourth proportional to 54,453.40, 81,680.10 and 41,147.80 is: 61,721.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,453.40 : 81,680.10 = 41,147.80 : x
  2. Step 2: Convert to fraction form
    54,453.40/81,680.10 = 41,147.80/x
  3. Step 3: Cross multiply
    54,453.40x = 81,680.10 × 41,147.80
  4. Step 4: Simplify right side
    54,453.40x = 3,360,956,418.78
  5. Step 5: Solve for x
    x = 3,360,956,418.78/54,453.40
  6. Step 6: Final answer
    x = 61,721.70

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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.