Finding the Fourth Proportional to 77,153.77, 115,739.97 and 27,223.62
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Solution
The fourth proportional to 77,153.77, 115,739.97 and 27,223.62 is: 40,838.72
Step by Step Solution
- Step 1: Write the proportion equation
77,153.77 : 115,739.97 = 27,223.62 : x - Step 2: Convert to fraction form
77,153.77/115,739.97 = 27,223.62/x - Step 3: Cross multiply
77,153.77x = 115,739.97 × 27,223.62 - Step 4: Simplify right side
77,153.77x = 3,150,860,962.09 - Step 5: Solve for x
x = 3,150,860,962.09/77,153.77 - Step 6: Final answer
x = 40,838.72
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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.