Finding the Fourth Proportional to 80,122.25, 120,068.55 and 44,988.09
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Solution
The fourth proportional to 80,122.25, 120,068.55 and 44,988.09 is: 67,417.66
Step by Step Solution
- Step 1: Write the proportion equation
80,122.25 : 120,068.55 = 44,988.09 : x - Step 2: Convert to fraction form
80,122.25/120,068.55 = 44,988.09/x - Step 3: Cross multiply
80,122.25x = 120,068.55 × 44,988.09 - Step 4: Simplify right side
80,122.25x = 5,401,654,733.57 - Step 5: Solve for x
x = 5,401,654,733.57/80,122.25 - Step 6: Final answer
x = 67,417.66
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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.