Home / 51,783.24-71,431.74-31,081.44

Finding the Fourth Proportional to 51,783.24, 71,431.74 and 31,081.44

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Solution

The fourth proportional to 51,783.24, 71,431.74 and 31,081.44 is: 42,874.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,783.24 : 71,431.74 = 31,081.44 : x
  2. Step 2: Convert to fraction form
    51,783.24/71,431.74 = 31,081.44/x
  3. Step 3: Cross multiply
    51,783.24x = 71,431.74 × 31,081.44
  4. Step 4: Simplify right side
    51,783.24x = 2,220,201,340.91
  5. Step 5: Solve for x
    x = 2,220,201,340.91/51,783.24
  6. Step 6: Final answer
    x = 42,874.90

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