Home / 72,636.36-108,951.57-20,044.50

Finding the Fourth Proportional to 72,636.36, 108,951.57 and 20,044.50

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Solution

The fourth proportional to 72,636.36, 108,951.57 and 20,044.50 is: 30,065.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,636.36 : 108,951.57 = 20,044.50 : x
  2. Step 2: Convert to fraction form
    72,636.36/108,951.57 = 20,044.50/x
  3. Step 3: Cross multiply
    72,636.36x = 108,951.57 × 20,044.50
  4. Step 4: Simplify right side
    72,636.36x = 2,183,879,744.87
  5. Step 5: Solve for x
    x = 2,183,879,744.87/72,636.36
  6. Step 6: Final answer
    x = 30,065.93

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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.