Finding the Fourth Proportional to 80,291.36, 120,511.74 and 40,877.96
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Solution
The fourth proportional to 80,291.36, 120,511.74 and 40,877.96 is: 61,354.97
Step by Step Solution
- Step 1: Write the proportion equation
80,291.36 : 120,511.74 = 40,877.96 : x - Step 2: Convert to fraction form
80,291.36/120,511.74 = 40,877.96/x - Step 3: Cross multiply
80,291.36x = 120,511.74 × 40,877.96 - Step 4: Simplify right side
80,291.36x = 4,926,274,087.25 - Step 5: Solve for x
x = 4,926,274,087.25/80,291.36 - Step 6: Final answer
x = 61,354.97
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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.