Finding the Fourth Proportional to 90,063.60, 124,279.14 and 49,770.84
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Solution
The fourth proportional to 90,063.60, 124,279.14 and 49,770.84 is: 68,678.99
Step by Step Solution
- Step 1: Write the proportion equation
90,063.60 : 124,279.14 = 49,770.84 : x - Step 2: Convert to fraction form
90,063.60/124,279.14 = 49,770.84/x - Step 3: Cross multiply
90,063.60x = 124,279.14 × 49,770.84 - Step 4: Simplify right side
90,063.60x = 6,185,477,192.28 - Step 5: Solve for x
x = 6,185,477,192.28/90,063.60 - Step 6: Final answer
x = 68,678.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.