Finding the Fourth Proportional to 115,659.60, 173,517.12 and 39,756.84
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Solution
The fourth proportional to 115,659.60, 173,517.12 and 39,756.84 is: 59,644.79
Step by Step Solution
- Step 1: Write the proportion equation
115,659.60 : 173,517.12 = 39,756.84 : x - Step 2: Convert to fraction form
115,659.60/173,517.12 = 39,756.84/x - Step 3: Cross multiply
115,659.60x = 173,517.12 × 39,756.84 - Step 4: Simplify right side
115,659.60x = 6,898,492,377.10 - Step 5: Solve for x
x = 6,898,492,377.10/115,659.60 - Step 6: Final answer
x = 59,644.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.