Home / 74,168.20-111,269.58-21,578.68

Finding the Fourth Proportional to 74,168.20, 111,269.58 and 21,578.68

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Solution

The fourth proportional to 74,168.20, 111,269.58 and 21,578.68 is: 32,373.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,168.20 : 111,269.58 = 21,578.68 : x
  2. Step 2: Convert to fraction form
    74,168.20/111,269.58 = 21,578.68/x
  3. Step 3: Cross multiply
    74,168.20x = 111,269.58 × 21,578.68
  4. Step 4: Simplify right side
    74,168.20x = 2,401,050,660.55
  5. Step 5: Solve for x
    x = 2,401,050,660.55/74,168.20
  6. Step 6: Final answer
    x = 32,373.05

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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.