Finding the Fourth Proportional to 84,079.75, 125,941.74 and 68,000.28
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Solution
The fourth proportional to 84,079.75, 125,941.74 and 68,000.28 is: 101,856.56
Step by Step Solution
- Step 1: Write the proportion equation
84,079.75 : 125,941.74 = 68,000.28 : x - Step 2: Convert to fraction form
84,079.75/125,941.74 = 68,000.28/x - Step 3: Cross multiply
84,079.75x = 125,941.74 × 68,000.28 - Step 4: Simplify right side
84,079.75x = 8,564,073,919.04 - Step 5: Solve for x
x = 8,564,073,919.04/84,079.75 - Step 6: Final answer
x = 101,856.56
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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.