Finding the Fourth Proportional to 76,918.92, 106,139.07 and 44,646.09
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Solution
The fourth proportional to 76,918.92, 106,139.07 and 44,646.09 is: 61,606.36
Step by Step Solution
- Step 1: Write the proportion equation
76,918.92 : 106,139.07 = 44,646.09 : x - Step 2: Convert to fraction form
76,918.92/106,139.07 = 44,646.09/x - Step 3: Cross multiply
76,918.92x = 106,139.07 × 44,646.09 - Step 4: Simplify right side
76,918.92x = 4,738,694,471.74 - Step 5: Solve for x
x = 4,738,694,471.74/76,918.92 - Step 6: Final answer
x = 61,606.36
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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.