Finding the Fourth Proportional to 74,388.48, 102,704.64 and 46,135.68
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Solution
The fourth proportional to 74,388.48, 102,704.64 and 46,135.68 is: 63,697.34
Step by Step Solution
- Step 1: Write the proportion equation
74,388.48 : 102,704.64 = 46,135.68 : x - Step 2: Convert to fraction form
74,388.48/102,704.64 = 46,135.68/x - Step 3: Cross multiply
74,388.48x = 102,704.64 × 46,135.68 - Step 4: Simplify right side
74,388.48x = 4,738,348,405.56 - Step 5: Solve for x
x = 4,738,348,405.56/74,388.48 - Step 6: Final answer
x = 63,697.34
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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.