Finding the Fourth Proportional to 86,556.54, 129,493.26 and 65,557.26
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Solution
The fourth proportional to 86,556.54, 129,493.26 and 65,557.26 is: 98,077.20
Step by Step Solution
- Step 1: Write the proportion equation
86,556.54 : 129,493.26 = 65,557.26 : x - Step 2: Convert to fraction form
86,556.54/129,493.26 = 65,557.26/x - Step 3: Cross multiply
86,556.54x = 129,493.26 × 65,557.26 - Step 4: Simplify right side
86,556.54x = 8,489,223,314.07 - Step 5: Solve for x
x = 8,489,223,314.07/86,556.54 - Step 6: Final answer
x = 98,077.20
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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.