Finding the Fourth Proportional to 83,221.11, 114,836.88 and 47,408.99
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Solution
The fourth proportional to 83,221.11, 114,836.88 and 47,408.99 is: 65,419.70
Step by Step Solution
- Step 1: Write the proportion equation
83,221.11 : 114,836.88 = 47,408.99 : x - Step 2: Convert to fraction form
83,221.11/114,836.88 = 47,408.99/x - Step 3: Cross multiply
83,221.11x = 114,836.88 × 47,408.99 - Step 4: Simplify right side
83,221.11x = 5,444,299,921.37 - Step 5: Solve for x
x = 5,444,299,921.37/83,221.11 - Step 6: Final answer
x = 65,419.70
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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.