Finding the Fourth Proportional to 76,021.74, 113,909.49 and 46,349.82
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Solution
The fourth proportional to 76,021.74, 113,909.49 and 46,349.82 is: 69,449.66
Step by Step Solution
- Step 1: Write the proportion equation
76,021.74 : 113,909.49 = 46,349.82 : x - Step 2: Convert to fraction form
76,021.74/113,909.49 = 46,349.82/x - Step 3: Cross multiply
76,021.74x = 113,909.49 × 46,349.82 - Step 4: Simplify right side
76,021.74x = 5,279,684,357.79 - Step 5: Solve for x
x = 5,279,684,357.79/76,021.74 - Step 6: Final answer
x = 69,449.66
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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.