Finding the Fourth Proportional to 76,940.10, 115,398.60 and 24,342.75
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Solution
The fourth proportional to 76,940.10, 115,398.60 and 24,342.75 is: 36,510.47
Step by Step Solution
- Step 1: Write the proportion equation
76,940.10 : 115,398.60 = 24,342.75 : x - Step 2: Convert to fraction form
76,940.10/115,398.60 = 24,342.75/x - Step 3: Cross multiply
76,940.10x = 115,398.60 × 24,342.75 - Step 4: Simplify right side
76,940.10x = 2,809,119,270.15 - Step 5: Solve for x
x = 2,809,119,270.15/76,940.10 - Step 6: Final answer
x = 36,510.47
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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.