Home / 72,721.13-109,054.68-25,324.05

Finding the Fourth Proportional to 72,721.13, 109,054.68 and 25,324.05

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Solution

The fourth proportional to 72,721.13, 109,054.68 and 25,324.05 is: 37,976.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,721.13 : 109,054.68 = 25,324.05 : x
  2. Step 2: Convert to fraction form
    72,721.13/109,054.68 = 25,324.05/x
  3. Step 3: Cross multiply
    72,721.13x = 109,054.68 × 25,324.05
  4. Step 4: Simplify right side
    72,721.13x = 2,761,706,169.05
  5. Step 5: Solve for x
    x = 2,761,706,169.05/72,721.13
  6. Step 6: Final answer
    x = 37,976.67

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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.