Finding the Fourth Proportional to 87,247.13, 120,403.67 and 51,467.81
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Solution
The fourth proportional to 87,247.13, 120,403.67 and 51,467.81 is: 71,027.12
Step by Step Solution
- Step 1: Write the proportion equation
87,247.13 : 120,403.67 = 51,467.81 : x - Step 2: Convert to fraction form
87,247.13/120,403.67 = 51,467.81/x - Step 3: Cross multiply
87,247.13x = 120,403.67 × 51,467.81 - Step 4: Simplify right side
87,247.13x = 6,196,912,351.51 - Step 5: Solve for x
x = 6,196,912,351.51/87,247.13 - Step 6: Final answer
x = 71,027.12
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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.