Finding the Fourth Proportional to 76,105.14, 104,950.98 and 68,629.53
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Solution
The fourth proportional to 76,105.14, 104,950.98 and 68,629.53 is: 94,641.92
Step by Step Solution
- Step 1: Write the proportion equation
76,105.14 : 104,950.98 = 68,629.53 : x - Step 2: Convert to fraction form
76,105.14/104,950.98 = 68,629.53/x - Step 3: Cross multiply
76,105.14x = 104,950.98 × 68,629.53 - Step 4: Simplify right side
76,105.14x = 7,202,736,430.44 - Step 5: Solve for x
x = 7,202,736,430.44/76,105.14 - Step 6: Final answer
x = 94,641.92
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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.