Home / 53,685.38-80,559.76-20,433.44

Finding the Fourth Proportional to 53,685.38, 80,559.76 and 20,433.44

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Solution

The fourth proportional to 53,685.38, 80,559.76 and 20,433.44 is: 30,662.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,685.38 : 80,559.76 = 20,433.44 : x
  2. Step 2: Convert to fraction form
    53,685.38/80,559.76 = 20,433.44/x
  3. Step 3: Cross multiply
    53,685.38x = 80,559.76 × 20,433.44
  4. Step 4: Simplify right side
    53,685.38x = 1,646,113,022.37
  5. Step 5: Solve for x
    x = 1,646,113,022.37/53,685.38
  6. Step 6: Final answer
    x = 30,662.22

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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.