Finding the Fourth Proportional to 76,883.84, 106,081.68 and 46,668.44
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Solution
The fourth proportional to 76,883.84, 106,081.68 and 46,668.44 is: 64,391.51
Step by Step Solution
- Step 1: Write the proportion equation
76,883.84 : 106,081.68 = 46,668.44 : x - Step 2: Convert to fraction form
76,883.84/106,081.68 = 46,668.44/x - Step 3: Cross multiply
76,883.84x = 106,081.68 × 46,668.44 - Step 4: Simplify right side
76,883.84x = 4,950,666,518.18 - Step 5: Solve for x
x = 4,950,666,518.18/76,883.84 - Step 6: Final answer
x = 64,391.51
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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.