Finding the Fourth Proportional to 88,197.26, 121,712.22 and 47,911.10
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Solution
The fourth proportional to 88,197.26, 121,712.22 and 47,911.10 is: 66,117.32
Step by Step Solution
- Step 1: Write the proportion equation
88,197.26 : 121,712.22 = 47,911.10 : x - Step 2: Convert to fraction form
88,197.26/121,712.22 = 47,911.10/x - Step 3: Cross multiply
88,197.26x = 121,712.22 × 47,911.10 - Step 4: Simplify right side
88,197.26x = 5,831,365,735.08 - Step 5: Solve for x
x = 5,831,365,735.08/88,197.26 - Step 6: Final answer
x = 66,117.32
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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.