Home / 53,942.06-80,860.84-20,636.48

Finding the Fourth Proportional to 53,942.06, 80,860.84 and 20,636.48

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Solution

The fourth proportional to 53,942.06, 80,860.84 and 20,636.48 is: 30,934.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,942.06 : 80,860.84 = 20,636.48 : x
  2. Step 2: Convert to fraction form
    53,942.06/80,860.84 = 20,636.48/x
  3. Step 3: Cross multiply
    53,942.06x = 80,860.84 × 20,636.48
  4. Step 4: Simplify right side
    53,942.06x = 1,668,683,107.44
  5. Step 5: Solve for x
    x = 1,668,683,107.44/53,942.06
  6. Step 6: Final answer
    x = 30,934.73

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1.5x scale

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.