Home / 81,991.44-113,176.51-48,010.86

Finding the Fourth Proportional to 81,991.44, 113,176.51 and 48,010.86

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Solution

The fourth proportional to 81,991.44, 113,176.51 and 48,010.86 is: 66,271.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,991.44 : 113,176.51 = 48,010.86 : x
  2. Step 2: Convert to fraction form
    81,991.44/113,176.51 = 48,010.86/x
  3. Step 3: Cross multiply
    81,991.44x = 113,176.51 × 48,010.86
  4. Step 4: Simplify right side
    81,991.44x = 5,433,701,456.87
  5. Step 5: Solve for x
    x = 5,433,701,456.87/81,991.44
  6. Step 6: Final answer
    x = 66,271.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.