Finding the Fourth Proportional to 76,775.52, 115,146.96 and 32,385.12
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Solution
The fourth proportional to 76,775.52, 115,146.96 and 32,385.12 is: 48,570.80
Step by Step Solution
- Step 1: Write the proportion equation
76,775.52 : 115,146.96 = 32,385.12 : x - Step 2: Convert to fraction form
76,775.52/115,146.96 = 32,385.12/x - Step 3: Cross multiply
76,775.52x = 115,146.96 × 32,385.12 - Step 4: Simplify right side
76,775.52x = 3,729,048,117.24 - Step 5: Solve for x
x = 3,729,048,117.24/76,775.52 - Step 6: Final answer
x = 48,570.80
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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.