Finding the Fourth Proportional to 113,453.88, 169,921.62 and 54,331.08
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Solution
The fourth proportional to 113,453.88, 169,921.62 and 54,331.08 is: 81,372.49
Step by Step Solution
- Step 1: Write the proportion equation
113,453.88 : 169,921.62 = 54,331.08 : x - Step 2: Convert to fraction form
113,453.88/169,921.62 = 54,331.08/x - Step 3: Cross multiply
113,453.88x = 169,921.62 × 54,331.08 - Step 4: Simplify right side
113,453.88x = 9,232,025,129.95 - Step 5: Solve for x
x = 9,232,025,129.95/113,453.88 - Step 6: Final answer
x = 81,372.49
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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.