Home / 53,721.03-80,616.54-20,441.39

Finding the Fourth Proportional to 53,721.03, 80,616.54 and 20,441.39

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Solution

The fourth proportional to 53,721.03, 80,616.54 and 20,441.39 is: 30,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,721.03 : 80,616.54 = 20,441.39 : x
  2. Step 2: Convert to fraction form
    53,721.03/80,616.54 = 20,441.39/x
  3. Step 3: Cross multiply
    53,721.03x = 80,616.54 × 20,441.39
  4. Step 4: Simplify right side
    53,721.03x = 1,647,914,134.59
  5. Step 5: Solve for x
    x = 1,647,914,134.59/53,721.03
  6. Step 6: Final answer
    x = 30,675.40

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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.