Finding the Fourth Proportional to 92,292.60, 138,431.70 and 36,121.80
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Solution
The fourth proportional to 92,292.60, 138,431.70 and 36,121.80 is: 54,179.88
Step by Step Solution
- Step 1: Write the proportion equation
92,292.60 : 138,431.70 = 36,121.80 : x - Step 2: Convert to fraction form
92,292.60/138,431.70 = 36,121.80/x - Step 3: Cross multiply
92,292.60x = 138,431.70 × 36,121.80 - Step 4: Simplify right side
92,292.60x = 5,000,402,181.06 - Step 5: Solve for x
x = 5,000,402,181.06/92,292.60 - Step 6: Final answer
x = 54,179.88
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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.