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Finding the Fourth Proportional to 45,349.40, 68,024.10 and 40,424.60

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Solution

The fourth proportional to 45,349.40, 68,024.10 and 40,424.60 is: 60,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,349.40 : 68,024.10 = 40,424.60 : x
  2. Step 2: Convert to fraction form
    45,349.40/68,024.10 = 40,424.60/x
  3. Step 3: Cross multiply
    45,349.40x = 68,024.10 × 40,424.60
  4. Step 4: Simplify right side
    45,349.40x = 2,749,847,032.86
  5. Step 5: Solve for x
    x = 2,749,847,032.86/45,349.40
  6. Step 6: Final answer
    x = 60,636.90

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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.