Finding the Fourth Proportional to 115,418.45, 173,105.80 and 40,520.99
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Solution
The fourth proportional to 115,418.45, 173,105.80 and 40,520.99 is: 60,773.81
Step by Step Solution
- Step 1: Write the proportion equation
115,418.45 : 173,105.80 = 40,520.99 : x - Step 2: Convert to fraction form
115,418.45/173,105.80 = 40,520.99/x - Step 3: Cross multiply
115,418.45x = 173,105.80 × 40,520.99 - Step 4: Simplify right side
115,418.45x = 7,014,418,390.74 - Step 5: Solve for x
x = 7,014,418,390.74/115,418.45 - Step 6: Final answer
x = 60,773.81
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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.