Home / 49,820.47-74,730.60-20,231.37

Finding the Fourth Proportional to 49,820.47, 74,730.60 and 20,231.37

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Solution

The fourth proportional to 49,820.47, 74,730.60 and 20,231.37 is: 30,347.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,820.47 : 74,730.60 = 20,231.37 : x
  2. Step 2: Convert to fraction form
    49,820.47/74,730.60 = 20,231.37/x
  3. Step 3: Cross multiply
    49,820.47x = 74,730.60 × 20,231.37
  4. Step 4: Simplify right side
    49,820.47x = 1,511,902,418.92
  5. Step 5: Solve for x
    x = 1,511,902,418.92/49,820.47
  6. Step 6: Final answer
    x = 30,347.01

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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.