Finding the Fourth Proportional to 78,650.62, 117,987.98 and 26,072.44
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Solution
The fourth proportional to 78,650.62, 117,987.98 and 26,072.44 is: 39,112.65
Step by Step Solution
- Step 1: Write the proportion equation
78,650.62 : 117,987.98 = 26,072.44 : x - Step 2: Convert to fraction form
78,650.62/117,987.98 = 26,072.44/x - Step 3: Cross multiply
78,650.62x = 117,987.98 × 26,072.44 - Step 4: Simplify right side
78,650.62x = 3,076,234,529.27 - Step 5: Solve for x
x = 3,076,234,529.27/78,650.62 - Step 6: Final answer
x = 39,112.65
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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.