Home / 45,433.20-68,117.40-20,452.80

Finding the Fourth Proportional to 45,433.20, 68,117.40 and 20,452.80

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Solution

The fourth proportional to 45,433.20, 68,117.40 and 20,452.80 is: 30,664.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,433.20 : 68,117.40 = 20,452.80 : x
  2. Step 2: Convert to fraction form
    45,433.20/68,117.40 = 20,452.80/x
  3. Step 3: Cross multiply
    45,433.20x = 68,117.40 × 20,452.80
  4. Step 4: Simplify right side
    45,433.20x = 1,393,191,558.72
  5. Step 5: Solve for x
    x = 1,393,191,558.72/45,433.20
  6. Step 6: Final answer
    x = 30,664.61

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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.