Finding the Fourth Proportional to 76,881.88, 115,283.94 and 39,433.96
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Solution
The fourth proportional to 76,881.88, 115,283.94 and 39,433.96 is: 59,131.00
Step by Step Solution
- Step 1: Write the proportion equation
76,881.88 : 115,283.94 = 39,433.96 : x - Step 2: Convert to fraction form
76,881.88/115,283.94 = 39,433.96/x - Step 3: Cross multiply
76,881.88x = 115,283.94 × 39,433.96 - Step 4: Simplify right side
76,881.88x = 4,546,102,278.60 - Step 5: Solve for x
x = 4,546,102,278.60/76,881.88 - Step 6: Final answer
x = 59,131.00
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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.