Home / 68,716.22-103,542.42-56,509.67

Finding the Fourth Proportional to 68,716.22, 103,542.42 and 56,509.67

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Solution

The fourth proportional to 68,716.22, 103,542.42 and 56,509.67 is: 85,149.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,716.22 : 103,542.42 = 56,509.67 : x
  2. Step 2: Convert to fraction form
    68,716.22/103,542.42 = 56,509.67/x
  3. Step 3: Cross multiply
    68,716.22x = 103,542.42 × 56,509.67
  4. Step 4: Simplify right side
    68,716.22x = 5,851,147,467.49
  5. Step 5: Solve for x
    x = 5,851,147,467.49/68,716.22
  6. Step 6: Final answer
    x = 85,149.44

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.