Home / 49,660.80-74,491.20-40,329.60

Finding the Fourth Proportional to 49,660.80, 74,491.20 and 40,329.60

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Solution

The fourth proportional to 49,660.80, 74,491.20 and 40,329.60 is: 60,494.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,660.80 : 74,491.20 = 40,329.60 : x
  2. Step 2: Convert to fraction form
    49,660.80/74,491.20 = 40,329.60/x
  3. Step 3: Cross multiply
    49,660.80x = 74,491.20 × 40,329.60
  4. Step 4: Simplify right side
    49,660.80x = 3,004,200,299.52
  5. Step 5: Solve for x
    x = 3,004,200,299.52/49,660.80
  6. Step 6: Final answer
    x = 60,494.40

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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.