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Finding the Fourth Proportional to 40,310.40, 60,465.75 and 12,230.70

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Solution

The fourth proportional to 40,310.40, 60,465.75 and 12,230.70 is: 18,346.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,310.40 : 60,465.75 = 12,230.70 : x
  2. Step 2: Convert to fraction form
    40,310.40/60,465.75 = 12,230.70/x
  3. Step 3: Cross multiply
    40,310.40x = 60,465.75 × 12,230.70
  4. Step 4: Simplify right side
    40,310.40x = 739,538,448.53
  5. Step 5: Solve for x
    x = 739,538,448.53/40,310.40
  6. Step 6: Final answer
    x = 18,346.10

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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.