Finding the Fourth Proportional to 86,362.20, 119,177.64 and 48,121.92
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Solution
The fourth proportional to 86,362.20, 119,177.64 and 48,121.92 is: 66,407.03
Step by Step Solution
- Step 1: Write the proportion equation
86,362.20 : 119,177.64 = 48,121.92 : x - Step 2: Convert to fraction form
86,362.20/119,177.64 = 48,121.92/x - Step 3: Cross multiply
86,362.20x = 119,177.64 × 48,121.92 - Step 4: Simplify right side
86,362.20x = 5,735,056,857.87 - Step 5: Solve for x
x = 5,735,056,857.87/86,362.20 - Step 6: Final answer
x = 66,407.03
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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.