Home / 53,912.12-80,865.44-20,629.62

Finding the Fourth Proportional to 53,912.12, 80,865.44 and 20,629.62

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Solution

The fourth proportional to 53,912.12, 80,865.44 and 20,629.62 is: 30,943.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,912.12 : 80,865.44 = 20,629.62 : x
  2. Step 2: Convert to fraction form
    53,912.12/80,865.44 = 20,629.62/x
  3. Step 3: Cross multiply
    53,912.12x = 80,865.44 × 20,629.62
  4. Step 4: Simplify right side
    53,912.12x = 1,668,223,298.33
  5. Step 5: Solve for x
    x = 1,668,223,298.33/53,912.12
  6. Step 6: Final answer
    x = 30,943.38

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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.