Finding the Fourth Proportional to 76,939.88, 115,424.78 and 29,551.50
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Solution
The fourth proportional to 76,939.88, 115,424.78 and 29,551.50 is: 44,333.00
Step by Step Solution
- Step 1: Write the proportion equation
76,939.88 : 115,424.78 = 29,551.50 : x - Step 2: Convert to fraction form
76,939.88/115,424.78 = 29,551.50/x - Step 3: Cross multiply
76,939.88x = 115,424.78 × 29,551.50 - Step 4: Simplify right side
76,939.88x = 3,410,975,238.41 - Step 5: Solve for x
x = 3,410,975,238.41/76,939.88 - Step 6: Final answer
x = 44,333.00
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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.