Finding the Fourth Proportional to 77,153.13, 115,739.01 and 27,222.98
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Solution
The fourth proportional to 77,153.13, 115,739.01 and 27,222.98 is: 40,837.75
Step by Step Solution
- Step 1: Write the proportion equation
77,153.13 : 115,739.01 = 27,222.98 : x - Step 2: Convert to fraction form
77,153.13/115,739.01 = 27,222.98/x - Step 3: Cross multiply
77,153.13x = 115,739.01 × 27,222.98 - Step 4: Simplify right side
77,153.13x = 3,150,760,175.75 - Step 5: Solve for x
x = 3,150,760,175.75/77,153.13 - Step 6: Final answer
x = 40,837.75
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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.