Finding the Fourth Proportional to 88,253.21, 121,790.18 and 47,966.99
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Solution
The fourth proportional to 88,253.21, 121,790.18 and 47,966.99 is: 66,194.85
Step by Step Solution
- Step 1: Write the proportion equation
88,253.21 : 121,790.18 = 47,966.99 : x - Step 2: Convert to fraction form
88,253.21/121,790.18 = 47,966.99/x - Step 3: Cross multiply
88,253.21x = 121,790.18 × 47,966.99 - Step 4: Simplify right side
88,253.21x = 5,841,907,857.12 - Step 5: Solve for x
x = 5,841,907,857.12/88,253.21 - Step 6: Final answer
x = 66,194.85
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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.