Finding the Fourth Proportional to 112,794.72, 169,213.44 and 45,331.99
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Solution
The fourth proportional to 112,794.72, 169,213.44 and 45,331.99 is: 68,006.57
Step by Step Solution
- Step 1: Write the proportion equation
112,794.72 : 169,213.44 = 45,331.99 : x - Step 2: Convert to fraction form
112,794.72/169,213.44 = 45,331.99/x - Step 3: Cross multiply
112,794.72x = 169,213.44 × 45,331.99 - Step 4: Simplify right side
112,794.72x = 7,670,781,969.95 - Step 5: Solve for x
x = 7,670,781,969.95/112,794.72 - Step 6: Final answer
x = 68,006.57
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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.