Home / 43,940.07-65,919.83-12,777.75

Finding the Fourth Proportional to 43,940.07, 65,919.83 and 12,777.75

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Solution

The fourth proportional to 43,940.07, 65,919.83 and 12,777.75 is: 19,169.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,940.07 : 65,919.83 = 12,777.75 : x
  2. Step 2: Convert to fraction form
    43,940.07/65,919.83 = 12,777.75/x
  3. Step 3: Cross multiply
    43,940.07x = 65,919.83 × 12,777.75
  4. Step 4: Simplify right side
    43,940.07x = 842,307,043.89
  5. Step 5: Solve for x
    x = 842,307,043.89/43,940.07
  6. Step 6: Final answer
    x = 19,169.45

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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.