Finding the Fourth Proportional to 81,677.18, 122,520.36 and 29,086.66
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Solution
The fourth proportional to 81,677.18, 122,520.36 and 29,086.66 is: 43,631.62
Step by Step Solution
- Step 1: Write the proportion equation
81,677.18 : 122,520.36 = 29,086.66 : x - Step 2: Convert to fraction form
81,677.18/122,520.36 = 29,086.66/x - Step 3: Cross multiply
81,677.18x = 122,520.36 × 29,086.66 - Step 4: Simplify right side
81,677.18x = 3,563,708,054.40 - Step 5: Solve for x
x = 3,563,708,054.40/81,677.18 - Step 6: Final answer
x = 43,631.62
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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.