Home / 71,874.09-107,796.56-19,271.25

Finding the Fourth Proportional to 71,874.09, 107,796.56 and 19,271.25

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Solution

The fourth proportional to 71,874.09, 107,796.56 and 19,271.25 is: 28,902.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,874.09 : 107,796.56 = 19,271.25 : x
  2. Step 2: Convert to fraction form
    71,874.09/107,796.56 = 19,271.25/x
  3. Step 3: Cross multiply
    71,874.09x = 107,796.56 × 19,271.25
  4. Step 4: Simplify right side
    71,874.09x = 2,077,374,360.54
  5. Step 5: Solve for x
    x = 2,077,374,360.54/71,874.09
  6. Step 6: Final answer
    x = 28,902.97

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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.