Finding the Fourth Proportional to 75,480.09, 104,165.16 and 41,489.99
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Solution
The fourth proportional to 75,480.09, 104,165.16 and 41,489.99 is: 57,257.63
Step by Step Solution
- Step 1: Write the proportion equation
75,480.09 : 104,165.16 = 41,489.99 : x - Step 2: Convert to fraction form
75,480.09/104,165.16 = 41,489.99/x - Step 3: Cross multiply
75,480.09x = 104,165.16 × 41,489.99 - Step 4: Simplify right side
75,480.09x = 4,321,811,160.95 - Step 5: Solve for x
x = 4,321,811,160.95/75,480.09 - Step 6: Final answer
x = 57,257.63
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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.