Home / 73,145.38-109,718.07-25,749.31

Finding the Fourth Proportional to 73,145.38, 109,718.07 and 25,749.31

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Solution

The fourth proportional to 73,145.38, 109,718.07 and 25,749.31 is: 38,623.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,145.38 : 109,718.07 = 25,749.31 : x
  2. Step 2: Convert to fraction form
    73,145.38/109,718.07 = 25,749.31/x
  3. Step 3: Cross multiply
    73,145.38x = 109,718.07 × 25,749.31
  4. Step 4: Simplify right side
    73,145.38x = 2,825,164,597.03
  5. Step 5: Solve for x
    x = 2,825,164,597.03/73,145.38
  6. Step 6: Final answer
    x = 38,623.97

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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.