Finding the Fourth Proportional to 83,755.49, 125,662.39 and 39,416.09
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Solution
The fourth proportional to 83,755.49, 125,662.39 and 39,416.09 is: 59,137.85
Step by Step Solution
- Step 1: Write the proportion equation
83,755.49 : 125,662.39 = 39,416.09 : x - Step 2: Convert to fraction form
83,755.49/125,662.39 = 39,416.09/x - Step 3: Cross multiply
83,755.49x = 125,662.39 × 39,416.09 - Step 4: Simplify right side
83,755.49x = 4,953,119,347.00 - Step 5: Solve for x
x = 4,953,119,347.00/83,755.49 - Step 6: Final answer
x = 59,137.85
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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.