Finding the Fourth Proportional to 86,163.52, 118,905.12 and 48,438.08
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Solution
The fourth proportional to 86,163.52, 118,905.12 and 48,438.08 is: 66,844.25
Step by Step Solution
- Step 1: Write the proportion equation
86,163.52 : 118,905.12 = 48,438.08 : x - Step 2: Convert to fraction form
86,163.52/118,905.12 = 48,438.08/x - Step 3: Cross multiply
86,163.52x = 118,905.12 × 48,438.08 - Step 4: Simplify right side
86,163.52x = 5,759,535,714.97 - Step 5: Solve for x
x = 5,759,535,714.97/86,163.52 - Step 6: Final answer
x = 66,844.25
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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.