Finding the Fourth Proportional to 76,407.75, 114,657.71 and 32,631.75
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Solution
The fourth proportional to 76,407.75, 114,657.71 and 32,631.75 is: 48,967.30
Step by Step Solution
- Step 1: Write the proportion equation
76,407.75 : 114,657.71 = 32,631.75 : x - Step 2: Convert to fraction form
76,407.75/114,657.71 = 32,631.75/x - Step 3: Cross multiply
76,407.75x = 114,657.71 × 32,631.75 - Step 4: Simplify right side
76,407.75x = 3,741,481,565.13 - Step 5: Solve for x
x = 3,741,481,565.13/76,407.75 - Step 6: Final answer
x = 48,967.30
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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.