Finding the Fourth Proportional to 76,876.99, 115,366.78 and 26,957.05
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Solution
The fourth proportional to 76,876.99, 115,366.78 and 26,957.05 is: 40,453.56
Step by Step Solution
- Step 1: Write the proportion equation
76,876.99 : 115,366.78 = 26,957.05 : x - Step 2: Convert to fraction form
76,876.99/115,366.78 = 26,957.05/x - Step 3: Cross multiply
76,876.99x = 115,366.78 × 26,957.05 - Step 4: Simplify right side
76,876.99x = 3,109,947,412.57 - Step 5: Solve for x
x = 3,109,947,412.57/76,876.99 - Step 6: Final answer
x = 40,453.56
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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.