Home / 43,143.84-64,736.82-30,744.36

Finding the Fourth Proportional to 43,143.84, 64,736.82 and 30,744.36

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Solution

The fourth proportional to 43,143.84, 64,736.82 and 30,744.36 is: 46,131.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,143.84 : 64,736.82 = 30,744.36 : x
  2. Step 2: Convert to fraction form
    43,143.84/64,736.82 = 30,744.36/x
  3. Step 3: Cross multiply
    43,143.84x = 64,736.82 × 30,744.36
  4. Step 4: Simplify right side
    43,143.84x = 1,990,292,099.34
  5. Step 5: Solve for x
    x = 1,990,292,099.34/43,143.84
  6. Step 6: Final answer
    x = 46,131.55

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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.