Home / 81,904.21-122,842.60-22,745.86

Finding the Fourth Proportional to 81,904.21, 122,842.60 and 22,745.86

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Solution

The fourth proportional to 81,904.21, 122,842.60 and 22,745.86 is: 34,114.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,904.21 : 122,842.60 = 22,745.86 : x
  2. Step 2: Convert to fraction form
    81,904.21/122,842.60 = 22,745.86/x
  3. Step 3: Cross multiply
    81,904.21x = 122,842.60 × 22,745.86
  4. Step 4: Simplify right side
    81,904.21x = 2,794,160,581.64
  5. Step 5: Solve for x
    x = 2,794,160,581.64/81,904.21
  6. Step 6: Final answer
    x = 34,114.98

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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.