Finding the Fourth Proportional to 76,762.98, 115,269.51 and 47,367.68
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Solution
The fourth proportional to 76,762.98, 115,269.51 and 47,367.68 is: 71,128.67
Step by Step Solution
- Step 1: Write the proportion equation
76,762.98 : 115,269.51 = 47,367.68 : x - Step 2: Convert to fraction form
76,762.98/115,269.51 = 47,367.68/x - Step 3: Cross multiply
76,762.98x = 115,269.51 × 47,367.68 - Step 4: Simplify right side
76,762.98x = 5,460,048,687.09 - Step 5: Solve for x
x = 5,460,048,687.09/76,762.98 - Step 6: Final answer
x = 71,128.67
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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.