Finding the Fourth Proportional to 86,628.60, 119,546.18 and 48,388.68
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Solution
The fourth proportional to 86,628.60, 119,546.18 and 48,388.68 is: 66,775.65
Step by Step Solution
- Step 1: Write the proportion equation
86,628.60 : 119,546.18 = 48,388.68 : x - Step 2: Convert to fraction form
86,628.60/119,546.18 = 48,388.68/x - Step 3: Cross multiply
86,628.60x = 119,546.18 × 48,388.68 - Step 4: Simplify right side
86,628.60x = 5,784,681,009.57 - Step 5: Solve for x
x = 5,784,681,009.57/86,628.60 - Step 6: Final answer
x = 66,775.65
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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.