Finding the Fourth Proportional to 68,067.36, 101,642.22 and 55,611.90
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Solution
The fourth proportional to 68,067.36, 101,642.22 and 55,611.90 is: 83,042.99
Step by Step Solution
- Step 1: Write the proportion equation
68,067.36 : 101,642.22 = 55,611.90 : x - Step 2: Convert to fraction form
68,067.36/101,642.22 = 55,611.90/x - Step 3: Cross multiply
68,067.36x = 101,642.22 × 55,611.90 - Step 4: Simplify right side
68,067.36x = 5,652,516,974.42 - Step 5: Solve for x
x = 5,652,516,974.42/68,067.36 - Step 6: Final answer
x = 83,042.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.