Finding the Fourth Proportional to 78,062.42, 117,093.93 and 18,897.99
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Solution
The fourth proportional to 78,062.42, 117,093.93 and 18,897.99 is: 28,347.06
Step by Step Solution
- Step 1: Write the proportion equation
78,062.42 : 117,093.93 = 18,897.99 : x - Step 2: Convert to fraction form
78,062.42/117,093.93 = 18,897.99/x - Step 3: Cross multiply
78,062.42x = 117,093.93 × 18,897.99 - Step 4: Simplify right side
78,062.42x = 2,212,839,918.20 - Step 5: Solve for x
x = 2,212,839,918.20/78,062.42 - Step 6: Final answer
x = 28,347.06
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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.