Finding the Fourth Proportional to 87,383.62, 120,602.34 and 53,411.68
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Solution
The fourth proportional to 87,383.62, 120,602.34 and 53,411.68 is: 73,716.02
Step by Step Solution
- Step 1: Write the proportion equation
87,383.62 : 120,602.34 = 53,411.68 : x - Step 2: Convert to fraction form
87,383.62/120,602.34 = 53,411.68/x - Step 3: Cross multiply
87,383.62x = 120,602.34 × 53,411.68 - Step 4: Simplify right side
87,383.62x = 6,441,572,721.26 - Step 5: Solve for x
x = 6,441,572,721.26/87,383.62 - Step 6: Final answer
x = 73,716.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.