Finding the Fourth Proportional to 76,938.60, 115,418.70 and 24,342.60
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Solution
The fourth proportional to 76,938.60, 115,418.70 and 24,342.60 is: 36,517.32
Step by Step Solution
- Step 1: Write the proportion equation
76,938.60 : 115,418.70 = 24,342.60 : x - Step 2: Convert to fraction form
76,938.60/115,418.70 = 24,342.60/x - Step 3: Cross multiply
76,938.60x = 115,418.70 × 24,342.60 - Step 4: Simplify right side
76,938.60x = 2,809,591,246.62 - Step 5: Solve for x
x = 2,809,591,246.62/76,938.60 - Step 6: Final answer
x = 36,517.32
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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.