Finding the Fourth Proportional to 79,778.82, 119,682.43 and 26,473.99
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Solution
The fourth proportional to 79,778.82, 119,682.43 and 26,473.99 is: 39,715.69
Step by Step Solution
- Step 1: Write the proportion equation
79,778.82 : 119,682.43 = 26,473.99 : x - Step 2: Convert to fraction form
79,778.82/119,682.43 = 26,473.99/x - Step 3: Cross multiply
79,778.82x = 119,682.43 × 26,473.99 - Step 4: Simplify right side
79,778.82x = 3,168,471,314.01 - Step 5: Solve for x
x = 3,168,471,314.01/79,778.82 - Step 6: Final answer
x = 39,715.69
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1.5x scale
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.