Finding the Fourth Proportional to 81,101.99, 121,727.74 and 41,149.09
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Solution
The fourth proportional to 81,101.99, 121,727.74 and 41,149.09 is: 61,761.56
Step by Step Solution
- Step 1: Write the proportion equation
81,101.99 : 121,727.74 = 41,149.09 : x - Step 2: Convert to fraction form
81,101.99/121,727.74 = 41,149.09/x - Step 3: Cross multiply
81,101.99x = 121,727.74 × 41,149.09 - Step 4: Simplify right side
81,101.99x = 5,008,985,397.11 - Step 5: Solve for x
x = 5,008,985,397.11/81,101.99 - Step 6: Final answer
x = 61,761.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.