Finding the Fourth Proportional to 88,357.32, 121,765.14 and 63,163.08
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Solution
The fourth proportional to 88,357.32, 121,765.14 and 63,163.08 is: 87,044.98
Step by Step Solution
- Step 1: Write the proportion equation
88,357.32 : 121,765.14 = 63,163.08 : x - Step 2: Convert to fraction form
88,357.32/121,765.14 = 63,163.08/x - Step 3: Cross multiply
88,357.32x = 121,765.14 × 63,163.08 - Step 4: Simplify right side
88,357.32x = 7,691,061,279.03 - Step 5: Solve for x
x = 7,691,061,279.03/88,357.32 - Step 6: Final answer
x = 87,044.98
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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.