Finding the Fourth Proportional to 75,768.09, 104,534.57 and 48,928.74
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Solution
The fourth proportional to 75,768.09, 104,534.57 and 48,928.74 is: 67,505.26
Step by Step Solution
- Step 1: Write the proportion equation
75,768.09 : 104,534.57 = 48,928.74 : x - Step 2: Convert to fraction form
75,768.09/104,534.57 = 48,928.74/x - Step 3: Cross multiply
75,768.09x = 104,534.57 × 48,928.74 - Step 4: Simplify right side
75,768.09x = 5,114,744,796.54 - Step 5: Solve for x
x = 5,114,744,796.54/75,768.09 - Step 6: Final answer
x = 67,505.26
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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.