Finding the Fourth Proportional to 79,261.62, 118,910.64 and 26,669.70
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Solution
The fourth proportional to 79,261.62, 118,910.64 and 26,669.70 is: 40,010.68
Step by Step Solution
- Step 1: Write the proportion equation
79,261.62 : 118,910.64 = 26,669.70 : x - Step 2: Convert to fraction form
79,261.62/118,910.64 = 26,669.70/x - Step 3: Cross multiply
79,261.62x = 118,910.64 × 26,669.70 - Step 4: Simplify right side
79,261.62x = 3,171,311,095.61 - Step 5: Solve for x
x = 3,171,311,095.61/79,261.62 - Step 6: Final answer
x = 40,010.68
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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.