Finding the Fourth Proportional to 87,141.48, 120,257.63 and 48,903.37
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Solution
The fourth proportional to 87,141.48, 120,257.63 and 48,903.37 is: 67,487.99
Step by Step Solution
- Step 1: Write the proportion equation
87,141.48 : 120,257.63 = 48,903.37 : x - Step 2: Convert to fraction form
87,141.48/120,257.63 = 48,903.37/x - Step 3: Cross multiply
87,141.48x = 120,257.63 × 48,903.37 - Step 4: Simplify right side
87,141.48x = 5,881,003,105.13 - Step 5: Solve for x
x = 5,881,003,105.13/87,141.48 - Step 6: Final answer
x = 67,487.99
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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.