Finding the Fourth Proportional to 75,979.97, 104,852.09 and 41,987.51
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Solution
The fourth proportional to 75,979.97, 104,852.09 and 41,987.51 is: 57,942.61
Step by Step Solution
- Step 1: Write the proportion equation
75,979.97 : 104,852.09 = 41,987.51 : x - Step 2: Convert to fraction form
75,979.97/104,852.09 = 41,987.51/x - Step 3: Cross multiply
75,979.97x = 104,852.09 × 41,987.51 - Step 4: Simplify right side
75,979.97x = 4,402,477,443.20 - Step 5: Solve for x
x = 4,402,477,443.20/75,979.97 - Step 6: Final answer
x = 57,942.61
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1.5x scale
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.