Home / 49,403.72-74,105.30-19,800.38

Finding the Fourth Proportional to 49,403.72, 74,105.30 and 19,800.38

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Solution

The fourth proportional to 49,403.72, 74,105.30 and 19,800.38 is: 29,700.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,403.72 : 74,105.30 = 19,800.38 : x
  2. Step 2: Convert to fraction form
    49,403.72/74,105.30 = 19,800.38/x
  3. Step 3: Cross multiply
    49,403.72x = 74,105.30 × 19,800.38
  4. Step 4: Simplify right side
    49,403.72x = 1,467,313,100.01
  5. Step 5: Solve for x
    x = 1,467,313,100.01/49,403.72
  6. Step 6: Final answer
    x = 29,700.46

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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.