Finding the Fourth Proportional to 88,235.91, 121,765.30 and 47,949.68
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Solution
The fourth proportional to 88,235.91, 121,765.30 and 47,949.68 is: 66,170.42
Step by Step Solution
- Step 1: Write the proportion equation
88,235.91 : 121,765.30 = 47,949.68 : x - Step 2: Convert to fraction form
88,235.91/121,765.30 = 47,949.68/x - Step 3: Cross multiply
88,235.91x = 121,765.30 × 47,949.68 - Step 4: Simplify right side
88,235.91x = 5,838,607,354.64 - Step 5: Solve for x
x = 5,838,607,354.64/88,235.91 - Step 6: Final answer
x = 66,170.42
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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.