Finding the Fourth Proportional to 72,514.44, 100,003.01 and 48,328.99
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Solution
The fourth proportional to 72,514.44, 100,003.01 and 48,328.99 is: 66,649.40
Step by Step Solution
- Step 1: Write the proportion equation
72,514.44 : 100,003.01 = 48,328.99 : x - Step 2: Convert to fraction form
72,514.44/100,003.01 = 48,328.99/x - Step 3: Cross multiply
72,514.44x = 100,003.01 × 48,328.99 - Step 4: Simplify right side
72,514.44x = 4,833,043,978.61 - Step 5: Solve for x
x = 4,833,043,978.61/72,514.44 - Step 6: Final answer
x = 66,649.40
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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.