Finding the Fourth Proportional to 74,562.53, 102,893.18 and 40,571.15
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Solution
The fourth proportional to 74,562.53, 102,893.18 and 40,571.15 is: 55,986.49
Step by Step Solution
- Step 1: Write the proportion equation
74,562.53 : 102,893.18 = 40,571.15 : x - Step 2: Convert to fraction form
74,562.53/102,893.18 = 40,571.15/x - Step 3: Cross multiply
74,562.53x = 102,893.18 × 40,571.15 - Step 4: Simplify right side
74,562.53x = 4,174,493,922.44 - Step 5: Solve for x
x = 4,174,493,922.44/74,562.53 - Step 6: Final answer
x = 55,986.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.