Home / 53,744.20-80,616.30-20,912.20

Finding the Fourth Proportional to 53,744.20, 80,616.30 and 20,912.20

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Solution

The fourth proportional to 53,744.20, 80,616.30 and 20,912.20 is: 31,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,744.20 : 80,616.30 = 20,912.20 : x
  2. Step 2: Convert to fraction form
    53,744.20/80,616.30 = 20,912.20/x
  3. Step 3: Cross multiply
    53,744.20x = 80,616.30 × 20,912.20
  4. Step 4: Simplify right side
    53,744.20x = 1,685,864,188.86
  5. Step 5: Solve for x
    x = 1,685,864,188.86/53,744.20
  6. Step 6: Final answer
    x = 31,368.30

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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.