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Finding the Fourth Proportional to 32,480.24, 48,720.90 and 9,105.80

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Solution

The fourth proportional to 32,480.24, 48,720.90 and 9,105.80 is: 13,658.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,480.24 : 48,720.90 = 9,105.80 : x
  2. Step 2: Convert to fraction form
    32,480.24/48,720.90 = 9,105.80/x
  3. Step 3: Cross multiply
    32,480.24x = 48,720.90 × 9,105.80
  4. Step 4: Simplify right side
    32,480.24x = 443,642,771.22
  5. Step 5: Solve for x
    x = 443,642,771.22/32,480.24
  6. Step 6: Final answer
    x = 13,658.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.