Home / 49,966.20-74,912.40-30,240.42

Finding the Fourth Proportional to 49,966.20, 74,912.40 and 30,240.42

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Solution

The fourth proportional to 49,966.20, 74,912.40 and 30,240.42 is: 45,338.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,966.20 : 74,912.40 = 30,240.42 : x
  2. Step 2: Convert to fraction form
    49,966.20/74,912.40 = 30,240.42/x
  3. Step 3: Cross multiply
    49,966.20x = 74,912.40 × 30,240.42
  4. Step 4: Simplify right side
    49,966.20x = 2,265,382,439.21
  5. Step 5: Solve for x
    x = 2,265,382,439.21/49,966.20
  6. Step 6: Final answer
    x = 45,338.30

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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.