Finding the Fourth Proportional to 76,882.88, 115,285.44 and 39,434.96
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Solution
The fourth proportional to 76,882.88, 115,285.44 and 39,434.96 is: 59,132.50
Step by Step Solution
- Step 1: Write the proportion equation
76,882.88 : 115,285.44 = 39,434.96 : x - Step 2: Convert to fraction form
76,882.88/115,285.44 = 39,434.96/x - Step 3: Cross multiply
76,882.88x = 115,285.44 × 39,434.96 - Step 4: Simplify right side
76,882.88x = 4,546,276,714.98 - Step 5: Solve for x
x = 4,546,276,714.98/76,882.88 - Step 6: Final answer
x = 59,132.50
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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.