Finding the Fourth Proportional to 67,043.70, 100,579.05 and 19,658.70
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Solution
The fourth proportional to 67,043.70, 100,579.05 and 19,658.70 is: 29,492.01
Step by Step Solution
- Step 1: Write the proportion equation
67,043.70 : 100,579.05 = 19,658.70 : x - Step 2: Convert to fraction form
67,043.70/100,579.05 = 19,658.70/x - Step 3: Cross multiply
67,043.70x = 100,579.05 × 19,658.70 - Step 4: Simplify right side
67,043.70x = 1,977,253,370.24 - Step 5: Solve for x
x = 1,977,253,370.24/67,043.70 - Step 6: Final answer
x = 29,492.01
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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.