Home / 49,954.70-74,960.85-18,812.30

Finding the Fourth Proportional to 49,954.70, 74,960.85 and 18,812.30

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Solution

The fourth proportional to 49,954.70, 74,960.85 and 18,812.30 is: 28,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,954.70 : 74,960.85 = 18,812.30 : x
  2. Step 2: Convert to fraction form
    49,954.70/74,960.85 = 18,812.30/x
  3. Step 3: Cross multiply
    49,954.70x = 74,960.85 × 18,812.30
  4. Step 4: Simplify right side
    49,954.70x = 1,410,185,998.46
  5. Step 5: Solve for x
    x = 1,410,185,998.46/49,954.70
  6. Step 6: Final answer
    x = 28,229.30

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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.