Home / 73,209.20-109,804.04-20,622.78

Finding the Fourth Proportional to 73,209.20, 109,804.04 and 20,622.78

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Solution

The fourth proportional to 73,209.20, 109,804.04 and 20,622.78 is: 30,931.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,209.20 : 109,804.04 = 20,622.78 : x
  2. Step 2: Convert to fraction form
    73,209.20/109,804.04 = 20,622.78/x
  3. Step 3: Cross multiply
    73,209.20x = 109,804.04 × 20,622.78
  4. Step 4: Simplify right side
    73,209.20x = 2,264,464,560.03
  5. Step 5: Solve for x
    x = 2,264,464,560.03/73,209.20
  6. Step 6: Final answer
    x = 30,931.42

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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.