Finding the Fourth Proportional to 75,390.99, 104,039.70 and 41,394.08
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Solution
The fourth proportional to 75,390.99, 104,039.70 and 41,394.08 is: 57,123.90
Step by Step Solution
- Step 1: Write the proportion equation
75,390.99 : 104,039.70 = 41,394.08 : x - Step 2: Convert to fraction form
75,390.99/104,039.70 = 41,394.08/x - Step 3: Cross multiply
75,390.99x = 104,039.70 × 41,394.08 - Step 4: Simplify right side
75,390.99x = 4,306,627,664.98 - Step 5: Solve for x
x = 4,306,627,664.98/75,390.99 - Step 6: Final answer
x = 57,123.90
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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.