Home / 61,917.21-85,418.24-40,401.99

Finding the Fourth Proportional to 61,917.21, 85,418.24 and 40,401.99

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Solution

The fourth proportional to 61,917.21, 85,418.24 and 40,401.99 is: 55,736.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,917.21 : 85,418.24 = 40,401.99 : x
  2. Step 2: Convert to fraction form
    61,917.21/85,418.24 = 40,401.99/x
  3. Step 3: Cross multiply
    61,917.21x = 85,418.24 × 40,401.99
  4. Step 4: Simplify right side
    61,917.21x = 3,451,066,676.29
  5. Step 5: Solve for x
    x = 3,451,066,676.29/61,917.21
  6. Step 6: Final answer
    x = 55,736.79

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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.