Finding the Fourth Proportional to 115,416.45, 173,102.81 and 40,518.99
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Solution
The fourth proportional to 115,416.45, 173,102.81 and 40,518.99 is: 60,770.81
Step by Step Solution
- Step 1: Write the proportion equation
115,416.45 : 173,102.81 = 40,518.99 : x - Step 2: Convert to fraction form
115,416.45/173,102.81 = 40,518.99/x - Step 3: Cross multiply
115,416.45x = 173,102.81 × 40,518.99 - Step 4: Simplify right side
115,416.45x = 7,013,950,824.77 - Step 5: Solve for x
x = 7,013,950,824.77/115,416.45 - Step 6: Final answer
x = 60,770.81
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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.