Home / 49,969.63-74,921.10-20,379.52

Finding the Fourth Proportional to 49,969.63, 74,921.10 and 20,379.52

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Solution

The fourth proportional to 49,969.63, 74,921.10 and 20,379.52 is: 30,555.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,969.63 : 74,921.10 = 20,379.52 : x
  2. Step 2: Convert to fraction form
    49,969.63/74,921.10 = 20,379.52/x
  3. Step 3: Cross multiply
    49,969.63x = 74,921.10 × 20,379.52
  4. Step 4: Simplify right side
    49,969.63x = 1,526,856,055.87
  5. Step 5: Solve for x
    x = 1,526,856,055.87/49,969.63
  6. Step 6: Final answer
    x = 30,555.68

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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.