Home / 72,634.86-108,949.32-20,043

Finding the Fourth Proportional to 72,634.86, 108,949.32 and 20,043

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Solution

The fourth proportional to 72,634.86, 108,949.32 and 20,043 is: 30,063.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,634.86 : 108,949.32 = 20,043 : x
  2. Step 2: Convert to fraction form
    72,634.86/108,949.32 = 20,043/x
  3. Step 3: Cross multiply
    72,634.86x = 108,949.32 × 20,043
  4. Step 4: Simplify right side
    72,634.86x = 2,183,671,220.76
  5. Step 5: Solve for x
    x = 2,183,671,220.76/72,634.86
  6. Step 6: Final answer
    x = 30,063.68

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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.