Finding the Fourth Proportional to 80,565.99, 120,889.89 and 36,183.66
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Solution
The fourth proportional to 80,565.99, 120,889.89 and 36,183.66 is: 54,293.86
Step by Step Solution
- Step 1: Write the proportion equation
80,565.99 : 120,889.89 = 36,183.66 : x - Step 2: Convert to fraction form
80,565.99/120,889.89 = 36,183.66/x - Step 3: Cross multiply
80,565.99x = 120,889.89 × 36,183.66 - Step 4: Simplify right side
80,565.99x = 4,374,238,677.20 - Step 5: Solve for x
x = 4,374,238,677.20/80,565.99 - Step 6: Final answer
x = 54,293.86
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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.