Finding the Fourth Proportional to 76,114.05, 105,079.62 and 45,906.99
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Solution
The fourth proportional to 76,114.05, 105,079.62 and 45,906.99 is: 63,377.12
Step by Step Solution
- Step 1: Write the proportion equation
76,114.05 : 105,079.62 = 45,906.99 : x - Step 2: Convert to fraction form
76,114.05/105,079.62 = 45,906.99/x - Step 3: Cross multiply
76,114.05x = 105,079.62 × 45,906.99 - Step 4: Simplify right side
76,114.05x = 4,823,889,064.54 - Step 5: Solve for x
x = 4,823,889,064.54/76,114.05 - Step 6: Final answer
x = 63,377.12
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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.