Finding the Fourth Proportional to 75,872.40, 104,703.40 and 41,416.99
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Solution
The fourth proportional to 75,872.40, 104,703.40 and 41,416.99 is: 57,155.17
Step by Step Solution
- Step 1: Write the proportion equation
75,872.40 : 104,703.40 = 41,416.99 : x - Step 2: Convert to fraction form
75,872.40/104,703.40 = 41,416.99/x - Step 3: Cross multiply
75,872.40x = 104,703.40 × 41,416.99 - Step 4: Simplify right side
75,872.40x = 4,336,500,049.74 - Step 5: Solve for x
x = 4,336,500,049.74/75,872.40 - Step 6: Final answer
x = 57,155.17
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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.