Home / 43,940.41-65,912.45-12,775.66

Finding the Fourth Proportional to 43,940.41, 65,912.45 and 12,775.66

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Solution

The fourth proportional to 43,940.41, 65,912.45 and 12,775.66 is: 19,164.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,940.41 : 65,912.45 = 12,775.66 : x
  2. Step 2: Convert to fraction form
    43,940.41/65,912.45 = 12,775.66/x
  3. Step 3: Cross multiply
    43,940.41x = 65,912.45 × 12,775.66
  4. Step 4: Simplify right side
    43,940.41x = 842,075,050.97
  5. Step 5: Solve for x
    x = 842,075,050.97/43,940.41
  6. Step 6: Final answer
    x = 19,164.02

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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.