Home / 43,293.57-64,942.80-12,131.25

Finding the Fourth Proportional to 43,293.57, 64,942.80 and 12,131.25

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Solution

The fourth proportional to 43,293.57, 64,942.80 and 12,131.25 is: 18,197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,293.57 : 64,942.80 = 12,131.25 : x
  2. Step 2: Convert to fraction form
    43,293.57/64,942.80 = 12,131.25/x
  3. Step 3: Cross multiply
    43,293.57x = 64,942.80 × 12,131.25
  4. Step 4: Simplify right side
    43,293.57x = 787,837,342.50
  5. Step 5: Solve for x
    x = 787,837,342.50/43,293.57
  6. Step 6: Final answer
    x = 18,197.56

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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.