Finding the Fourth Proportional to 76,070.82, 104,942.38 and 49,221.99
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Solution
The fourth proportional to 76,070.82, 104,942.38 and 49,221.99 is: 67,903.47
Step by Step Solution
- Step 1: Write the proportion equation
76,070.82 : 104,942.38 = 49,221.99 : x - Step 2: Convert to fraction form
76,070.82/104,942.38 = 49,221.99/x - Step 3: Cross multiply
76,070.82x = 104,942.38 × 49,221.99 - Step 4: Simplify right side
76,070.82x = 5,165,472,778.94 - Step 5: Solve for x
x = 5,165,472,778.94/76,070.82 - Step 6: Final answer
x = 67,903.47
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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.