Home / 49,782.55-74,687.19-20,220.94

Finding the Fourth Proportional to 49,782.55, 74,687.19 and 20,220.94

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Solution

The fourth proportional to 49,782.55, 74,687.19 and 20,220.94 is: 30,336.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,782.55 : 74,687.19 = 20,220.94 : x
  2. Step 2: Convert to fraction form
    49,782.55/74,687.19 = 20,220.94/x
  3. Step 3: Cross multiply
    49,782.55x = 74,687.19 × 20,220.94
  4. Step 4: Simplify right side
    49,782.55x = 1,510,245,187.76
  5. Step 5: Solve for x
    x = 1,510,245,187.76/49,782.55
  6. Step 6: Final answer
    x = 30,336.84

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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.