Home / 53,842.20-80,768.97-18,782.16

Finding the Fourth Proportional to 53,842.20, 80,768.97 and 18,782.16

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Solution

The fourth proportional to 53,842.20, 80,768.97 and 18,782.16 is: 28,175.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,842.20 : 80,768.97 = 18,782.16 : x
  2. Step 2: Convert to fraction form
    53,842.20/80,768.97 = 18,782.16/x
  3. Step 3: Cross multiply
    53,842.20x = 80,768.97 × 18,782.16
  4. Step 4: Simplify right side
    53,842.20x = 1,517,015,717.58
  5. Step 5: Solve for x
    x = 1,517,015,717.58/53,842.20
  6. Step 6: Final answer
    x = 28,175.22

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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.