Home / 49,945.94-74,921.79-18,781.46

Finding the Fourth Proportional to 49,945.94, 74,921.79 and 18,781.46

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Solution

The fourth proportional to 49,945.94, 74,921.79 and 18,781.46 is: 28,173.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,945.94 : 74,921.79 = 18,781.46 : x
  2. Step 2: Convert to fraction form
    49,945.94/74,921.79 = 18,781.46/x
  3. Step 3: Cross multiply
    49,945.94x = 74,921.79 × 18,781.46
  4. Step 4: Simplify right side
    49,945.94x = 1,407,140,227.40
  5. Step 5: Solve for x
    x = 1,407,140,227.40/49,945.94
  6. Step 6: Final answer
    x = 28,173.27

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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.