Finding the Fourth Proportional to 88,197.43, 121,713.30 and 47,911.98
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Solution
The fourth proportional to 88,197.43, 121,713.30 and 47,911.98 is: 66,118.99
Step by Step Solution
- Step 1: Write the proportion equation
88,197.43 : 121,713.30 = 47,911.98 : x - Step 2: Convert to fraction form
88,197.43/121,713.30 = 47,911.98/x - Step 3: Cross multiply
88,197.43x = 121,713.30 × 47,911.98 - Step 4: Simplify right side
88,197.43x = 5,831,525,195.33 - Step 5: Solve for x
x = 5,831,525,195.33/88,197.43 - Step 6: Final answer
x = 66,118.99
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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.