Finding the Fourth Proportional to 76,391.74, 114,593.74 and 29,029.54
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Solution
The fourth proportional to 76,391.74, 114,593.74 and 29,029.54 is: 43,546.64
Step by Step Solution
- Step 1: Write the proportion equation
76,391.74 : 114,593.74 = 29,029.54 : x - Step 2: Convert to fraction form
76,391.74/114,593.74 = 29,029.54/x - Step 3: Cross multiply
76,391.74x = 114,593.74 × 29,029.54 - Step 4: Simplify right side
76,391.74x = 3,326,603,559.08 - Step 5: Solve for x
x = 3,326,603,559.08/76,391.74 - Step 6: Final answer
x = 43,546.64
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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.