Home / 81,942.44-113,111.16-47,961.68

Finding the Fourth Proportional to 81,942.44, 113,111.16 and 47,961.68

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Solution

The fourth proportional to 81,942.44, 113,111.16 and 47,961.68 is: 66,205.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,942.44 : 113,111.16 = 47,961.68 : x
  2. Step 2: Convert to fraction form
    81,942.44/113,111.16 = 47,961.68/x
  3. Step 3: Cross multiply
    81,942.44x = 113,111.16 × 47,961.68
  4. Step 4: Simplify right side
    81,942.44x = 5,425,001,260.35
  5. Step 5: Solve for x
    x = 5,425,001,260.35/81,942.44
  6. Step 6: Final answer
    x = 66,205.02

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1.5x scale

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.