Home / 73,280.20-109,920.30-40,102.60

Finding the Fourth Proportional to 73,280.20, 109,920.30 and 40,102.60

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Solution

The fourth proportional to 73,280.20, 109,920.30 and 40,102.60 is: 60,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,280.20 : 109,920.30 = 40,102.60 : x
  2. Step 2: Convert to fraction form
    73,280.20/109,920.30 = 40,102.60/x
  3. Step 3: Cross multiply
    73,280.20x = 109,920.30 × 40,102.60
  4. Step 4: Simplify right side
    73,280.20x = 4,408,089,822.78
  5. Step 5: Solve for x
    x = 4,408,089,822.78/73,280.20
  6. Step 6: Final answer
    x = 60,153.90

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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.