Finding the Fourth Proportional to 76,961.31, 115,448.55 and 27,037.05
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Solution
The fourth proportional to 76,961.31, 115,448.55 and 27,037.05 is: 40,557.89
Step by Step Solution
- Step 1: Write the proportion equation
76,961.31 : 115,448.55 = 27,037.05 : x - Step 2: Convert to fraction form
76,961.31/115,448.55 = 27,037.05/x - Step 3: Cross multiply
76,961.31x = 115,448.55 × 27,037.05 - Step 4: Simplify right side
76,961.31x = 3,121,388,218.78 - Step 5: Solve for x
x = 3,121,388,218.78/76,961.31 - Step 6: Final answer
x = 40,557.89
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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.