Finding the Fourth Proportional to 77,193.20, 115,670.26 and 53,546.74
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Solution
The fourth proportional to 77,193.20, 115,670.26 and 53,546.74 is: 80,237.18
Step by Step Solution
- Step 1: Write the proportion equation
77,193.20 : 115,670.26 = 53,546.74 : x - Step 2: Convert to fraction form
77,193.20/115,670.26 = 53,546.74/x - Step 3: Cross multiply
77,193.20x = 115,670.26 × 53,546.74 - Step 4: Simplify right side
77,193.20x = 6,193,765,115.71 - Step 5: Solve for x
x = 6,193,765,115.71/77,193.20 - Step 6: Final answer
x = 80,237.18
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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.