Finding the Fourth Proportional to 79,830.87, 119,730.86 and 26,514.54
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Solution
The fourth proportional to 79,830.87, 119,730.86 and 26,514.54 is: 39,766.68
Step by Step Solution
- Step 1: Write the proportion equation
79,830.87 : 119,730.86 = 26,514.54 : x - Step 2: Convert to fraction form
79,830.87/119,730.86 = 26,514.54/x - Step 3: Cross multiply
79,830.87x = 119,730.86 × 26,514.54 - Step 4: Simplify right side
79,830.87x = 3,174,608,643.56 - Step 5: Solve for x
x = 3,174,608,643.56/79,830.87 - Step 6: Final answer
x = 39,766.68
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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.