Home / 49,793.40-74,718.90-18,631.80

Finding the Fourth Proportional to 49,793.40, 74,718.90 and 18,631.80

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Solution

The fourth proportional to 49,793.40, 74,718.90 and 18,631.80 is: 27,958.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,793.40 : 74,718.90 = 18,631.80 : x
  2. Step 2: Convert to fraction form
    49,793.40/74,718.90 = 18,631.80/x
  3. Step 3: Cross multiply
    49,793.40x = 74,718.90 × 18,631.80
  4. Step 4: Simplify right side
    49,793.40x = 1,392,147,601.02
  5. Step 5: Solve for x
    x = 1,392,147,601.02/49,793.40
  6. Step 6: Final answer
    x = 27,958.48

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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.