Finding the Fourth Proportional to 86,207.30, 118,964.93 and 48,481.55
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Solution
The fourth proportional to 86,207.30, 118,964.93 and 48,481.55 is: 66,903.89
Step by Step Solution
- Step 1: Write the proportion equation
86,207.30 : 118,964.93 = 48,481.55 : x - Step 2: Convert to fraction form
86,207.30/118,964.93 = 48,481.55/x - Step 3: Cross multiply
86,207.30x = 118,964.93 × 48,481.55 - Step 4: Simplify right side
86,207.30x = 5,767,603,364.81 - Step 5: Solve for x
x = 5,767,603,364.81/86,207.30 - Step 6: Final answer
x = 66,903.89
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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.