Finding the Fourth Proportional to 83,934.18, 115,817.22 and 48,125.70
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Solution
The fourth proportional to 83,934.18, 115,817.22 and 48,125.70 is: 66,406.62
Step by Step Solution
- Step 1: Write the proportion equation
83,934.18 : 115,817.22 = 48,125.70 : x - Step 2: Convert to fraction form
83,934.18/115,817.22 = 48,125.70/x - Step 3: Cross multiply
83,934.18x = 115,817.22 × 48,125.70 - Step 4: Simplify right side
83,934.18x = 5,573,784,784.55 - Step 5: Solve for x
x = 5,573,784,784.55/83,934.18 - Step 6: Final answer
x = 66,406.62
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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.