Home / 43,121.56-64,682.35-11,956.81

Finding the Fourth Proportional to 43,121.56, 64,682.35 and 11,956.81

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Solution

The fourth proportional to 43,121.56, 64,682.35 and 11,956.81 is: 17,935.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,121.56 : 64,682.35 = 11,956.81 : x
  2. Step 2: Convert to fraction form
    43,121.56/64,682.35 = 11,956.81/x
  3. Step 3: Cross multiply
    43,121.56x = 64,682.35 × 11,956.81
  4. Step 4: Simplify right side
    43,121.56x = 773,394,569.30
  5. Step 5: Solve for x
    x = 773,394,569.30/43,121.56
  6. Step 6: Final answer
    x = 17,935.22

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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.