Finding the Fourth Proportional to 74,336.36, 111,405.83 and 40,515.53
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Solution
The fourth proportional to 74,336.36, 111,405.83 and 40,515.53 is: 60,719.49
Step by Step Solution
- Step 1: Write the proportion equation
74,336.36 : 111,405.83 = 40,515.53 : x - Step 2: Convert to fraction form
74,336.36/111,405.83 = 40,515.53/x - Step 3: Cross multiply
74,336.36x = 111,405.83 × 40,515.53 - Step 4: Simplify right side
74,336.36x = 4,513,665,487.93 - Step 5: Solve for x
x = 4,513,665,487.93/74,336.36 - Step 6: Final answer
x = 60,719.49
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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.