Finding the Fourth Proportional to 74,455.44, 102,748.84 and 40,923.60
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Solution
The fourth proportional to 74,455.44, 102,748.84 and 40,923.60 is: 56,474.75
Step by Step Solution
- Step 1: Write the proportion equation
74,455.44 : 102,748.84 = 40,923.60 : x - Step 2: Convert to fraction form
74,455.44/102,748.84 = 40,923.60/x - Step 3: Cross multiply
74,455.44x = 102,748.84 × 40,923.60 - Step 4: Simplify right side
74,455.44x = 4,204,852,428.62 - Step 5: Solve for x
x = 4,204,852,428.62/74,455.44 - Step 6: Final answer
x = 56,474.75
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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.