Finding the Fourth Proportional to 88,021.17, 121,469.23 and 47,734.75
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Solution
The fourth proportional to 88,021.17, 121,469.23 and 47,734.75 is: 65,873.96
Step by Step Solution
- Step 1: Write the proportion equation
88,021.17 : 121,469.23 = 47,734.75 : x - Step 2: Convert to fraction form
88,021.17/121,469.23 = 47,734.75/x - Step 3: Cross multiply
88,021.17x = 121,469.23 × 47,734.75 - Step 4: Simplify right side
88,021.17x = 5,798,303,047.08 - Step 5: Solve for x
x = 5,798,303,047.08/88,021.17 - Step 6: Final answer
x = 65,873.96
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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.