Home / 68,205.32-102,321.90-28,762.36

Finding the Fourth Proportional to 68,205.32, 102,321.90 and 28,762.36

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Solution

The fourth proportional to 68,205.32, 102,321.90 and 28,762.36 is: 43,149.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,205.32 : 102,321.90 = 28,762.36 : x
  2. Step 2: Convert to fraction form
    68,205.32/102,321.90 = 28,762.36/x
  3. Step 3: Cross multiply
    68,205.32x = 102,321.90 × 28,762.36
  4. Step 4: Simplify right side
    68,205.32x = 2,943,019,323.68
  5. Step 5: Solve for x
    x = 2,943,019,323.68/68,205.32
  6. Step 6: Final answer
    x = 43,149.41

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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.