Home / 43,109.40-64,663.92-11,944.56

Finding the Fourth Proportional to 43,109.40, 64,663.92 and 11,944.56

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Solution

The fourth proportional to 43,109.40, 64,663.92 and 11,944.56 is: 17,916.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,109.40 : 64,663.92 = 11,944.56 : x
  2. Step 2: Convert to fraction form
    43,109.40/64,663.92 = 11,944.56/x
  3. Step 3: Cross multiply
    43,109.40x = 64,663.92 × 11,944.56
  4. Step 4: Simplify right side
    43,109.40x = 772,382,072.28
  5. Step 5: Solve for x
    x = 772,382,072.28/43,109.40
  6. Step 6: Final answer
    x = 17,916.79

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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.