Finding the Fourth Proportional to 80,176.80, 120,201.12 and 38,035.68
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Solution
The fourth proportional to 80,176.80, 120,201.12 and 38,035.68 is: 57,023.12
Step by Step Solution
- Step 1: Write the proportion equation
80,176.80 : 120,201.12 = 38,035.68 : x - Step 2: Convert to fraction form
80,176.80/120,201.12 = 38,035.68/x - Step 3: Cross multiply
80,176.80x = 120,201.12 × 38,035.68 - Step 4: Simplify right side
80,176.80x = 4,571,931,335.96 - Step 5: Solve for x
x = 4,571,931,335.96/80,176.80 - Step 6: Final answer
x = 57,023.12
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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.