Finding the Fourth Proportional to 76,961.63, 115,453.99 and 27,032.93
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Solution
The fourth proportional to 76,961.63, 115,453.99 and 27,032.93 is: 40,553.45
Step by Step Solution
- Step 1: Write the proportion equation
76,961.63 : 115,453.99 = 27,032.93 : x - Step 2: Convert to fraction form
76,961.63/115,453.99 = 27,032.93/x - Step 3: Cross multiply
76,961.63x = 115,453.99 × 27,032.93 - Step 4: Simplify right side
76,961.63x = 3,121,059,629.89 - Step 5: Solve for x
x = 3,121,059,629.89/76,961.63 - Step 6: Final answer
x = 40,553.45
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1.5x scale
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.