Home / 73,013.40-109,544.67-72,521.33

Finding the Fourth Proportional to 73,013.40, 109,544.67 and 72,521.33

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Solution

The fourth proportional to 73,013.40, 109,544.67 and 72,521.33 is: 108,806.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,013.40 : 109,544.67 = 72,521.33 : x
  2. Step 2: Convert to fraction form
    73,013.40/109,544.67 = 72,521.33/x
  3. Step 3: Cross multiply
    73,013.40x = 109,544.67 × 72,521.33
  4. Step 4: Simplify right side
    73,013.40x = 7,944,324,615.09
  5. Step 5: Solve for x
    x = 7,944,324,615.09/73,013.40
  6. Step 6: Final answer
    x = 108,806.39

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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.