Finding the Fourth Proportional to 87,447.12, 120,677.04 and 49,723.68
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Solution
The fourth proportional to 87,447.12, 120,677.04 and 49,723.68 is: 68,618.69
Step by Step Solution
- Step 1: Write the proportion equation
87,447.12 : 120,677.04 = 49,723.68 : x - Step 2: Convert to fraction form
87,447.12/120,677.04 = 49,723.68/x - Step 3: Cross multiply
87,447.12x = 120,677.04 × 49,723.68 - Step 4: Simplify right side
87,447.12x = 6,000,506,520.31 - Step 5: Solve for x
x = 6,000,506,520.31/87,447.12 - Step 6: Final answer
x = 68,618.69
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1.5x scale
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.