Finding the Fourth Proportional to 85,977.24, 128,933.11 and 33,374.49
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Solution
The fourth proportional to 85,977.24, 128,933.11 and 33,374.49 is: 50,049.02
Step by Step Solution
- Step 1: Write the proportion equation
85,977.24 : 128,933.11 = 33,374.49 : x - Step 2: Convert to fraction form
85,977.24/128,933.11 = 33,374.49/x - Step 3: Cross multiply
85,977.24x = 128,933.11 × 33,374.49 - Step 4: Simplify right side
85,977.24x = 4,303,076,790.36 - Step 5: Solve for x
x = 4,303,076,790.36/85,977.24 - Step 6: Final answer
x = 50,049.02
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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.