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Finding the Fourth Proportional to 80,408.40, 120,612.60 and 24,997.20

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Solution

The fourth proportional to 80,408.40, 120,612.60 and 24,997.20 is: 37,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,408.40 : 120,612.60 = 24,997.20 : x
  2. Step 2: Convert to fraction form
    80,408.40/120,612.60 = 24,997.20/x
  3. Step 3: Cross multiply
    80,408.40x = 120,612.60 × 24,997.20
  4. Step 4: Simplify right side
    80,408.40x = 3,014,977,284.72
  5. Step 5: Solve for x
    x = 3,014,977,284.72/80,408.40
  6. Step 6: Final answer
    x = 37,495.80

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Similar ratio
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1.5x scale

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.