Finding the Fourth Proportional to 84,421.12, 126,595.68 and 25,255.84
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Solution
The fourth proportional to 84,421.12, 126,595.68 and 25,255.84 is: 37,872.99
Step by Step Solution
- Step 1: Write the proportion equation
84,421.12 : 126,595.68 = 25,255.84 : x - Step 2: Convert to fraction form
84,421.12/126,595.68 = 25,255.84/x - Step 3: Cross multiply
84,421.12x = 126,595.68 × 25,255.84 - Step 4: Simplify right side
84,421.12x = 3,197,280,238.77 - Step 5: Solve for x
x = 3,197,280,238.77/84,421.12 - Step 6: Final answer
x = 37,872.99
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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.