Finding the Fourth Proportional to 75,112.12, 103,724.99 and 48,301.21
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Solution
The fourth proportional to 75,112.12, 103,724.99 and 48,301.21 is: 66,700.85
Step by Step Solution
- Step 1: Write the proportion equation
75,112.12 : 103,724.99 = 48,301.21 : x - Step 2: Convert to fraction form
75,112.12/103,724.99 = 48,301.21/x - Step 3: Cross multiply
75,112.12x = 103,724.99 × 48,301.21 - Step 4: Simplify right side
75,112.12x = 5,010,042,524.24 - Step 5: Solve for x
x = 5,010,042,524.24/75,112.12 - Step 6: Final answer
x = 66,700.85
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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.