Finding the Fourth Proportional to 87,313.60, 120,492.92 and 49,587.84
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Solution
The fourth proportional to 87,313.60, 120,492.92 and 49,587.84 is: 68,431.31
Step by Step Solution
- Step 1: Write the proportion equation
87,313.60 : 120,492.92 = 49,587.84 : x - Step 2: Convert to fraction form
87,313.60/120,492.92 = 49,587.84/x - Step 3: Cross multiply
87,313.60x = 120,492.92 × 49,587.84 - Step 4: Simplify right side
87,313.60x = 5,974,983,638.09 - Step 5: Solve for x
x = 5,974,983,638.09/87,313.60 - Step 6: Final answer
x = 68,431.31
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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.