Finding the Fourth Proportional to 76,936.63, 115,403.74 and 39,475.08
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Solution
The fourth proportional to 76,936.63, 115,403.74 and 39,475.08 is: 59,212.00
Step by Step Solution
- Step 1: Write the proportion equation
76,936.63 : 115,403.74 = 39,475.08 : x - Step 2: Convert to fraction form
76,936.63/115,403.74 = 39,475.08/x - Step 3: Cross multiply
76,936.63x = 115,403.74 × 39,475.08 - Step 4: Simplify right side
76,936.63x = 4,555,571,868.80 - Step 5: Solve for x
x = 4,555,571,868.80/76,936.63 - Step 6: Final answer
x = 59,212.00
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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.