Home / 47,091.78-65,003.72-31,181.36

Finding the Fourth Proportional to 47,091.78, 65,003.72 and 31,181.36

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Solution

The fourth proportional to 47,091.78, 65,003.72 and 31,181.36 is: 43,041.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,091.78 : 65,003.72 = 31,181.36 : x
  2. Step 2: Convert to fraction form
    47,091.78/65,003.72 = 31,181.36/x
  3. Step 3: Cross multiply
    47,091.78x = 65,003.72 × 31,181.36
  4. Step 4: Simplify right side
    47,091.78x = 2,026,904,394.66
  5. Step 5: Solve for x
    x = 2,026,904,394.66/47,091.78
  6. Step 6: Final answer
    x = 43,041.58

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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.