Finding the Fourth Proportional to 78,553.73, 117,812.84 and 22,392.63
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Solution
The fourth proportional to 78,553.73, 117,812.84 and 22,392.63 is: 33,583.88
Step by Step Solution
- Step 1: Write the proportion equation
78,553.73 : 117,812.84 = 22,392.63 : x - Step 2: Convert to fraction form
78,553.73/117,812.84 = 22,392.63/x - Step 3: Cross multiply
78,553.73x = 117,812.84 × 22,392.63 - Step 4: Simplify right side
78,553.73x = 2,638,139,223.41 - Step 5: Solve for x
x = 2,638,139,223.41/78,553.73 - Step 6: Final answer
x = 33,583.88
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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.