Finding the Fourth Proportional to 90,481.08, 135,808.02 and 55,489.08
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Solution
The fourth proportional to 90,481.08, 135,808.02 and 55,489.08 is: 83,286.61
Step by Step Solution
- Step 1: Write the proportion equation
90,481.08 : 135,808.02 = 55,489.08 : x - Step 2: Convert to fraction form
90,481.08/135,808.02 = 55,489.08/x - Step 3: Cross multiply
90,481.08x = 135,808.02 × 55,489.08 - Step 4: Simplify right side
90,481.08x = 7,535,862,086.42 - Step 5: Solve for x
x = 7,535,862,086.42/90,481.08 - Step 6: Final answer
x = 83,286.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.