Finding the Fourth Proportional to 89,090.21, 122,944.53 and 48,805.44
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Solution
The fourth proportional to 89,090.21, 122,944.53 and 48,805.44 is: 67,351.52
Step by Step Solution
- Step 1: Write the proportion equation
89,090.21 : 122,944.53 = 48,805.44 : x - Step 2: Convert to fraction form
89,090.21/122,944.53 = 48,805.44/x - Step 3: Cross multiply
89,090.21x = 122,944.53 × 48,805.44 - Step 4: Simplify right side
89,090.21x = 6,000,361,604.22 - Step 5: Solve for x
x = 6,000,361,604.22/89,090.21 - Step 6: Final answer
x = 67,351.52
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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.