Finding the Fourth Proportional to 79,865.12, 119,793.36 and 24,461.28
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Solution
The fourth proportional to 79,865.12, 119,793.36 and 24,461.28 is: 36,690.60
Step by Step Solution
- Step 1: Write the proportion equation
79,865.12 : 119,793.36 = 24,461.28 : x - Step 2: Convert to fraction form
79,865.12/119,793.36 = 24,461.28/x - Step 3: Cross multiply
79,865.12x = 119,793.36 × 24,461.28 - Step 4: Simplify right side
79,865.12x = 2,930,298,921.10 - Step 5: Solve for x
x = 2,930,298,921.10/79,865.12 - Step 6: Final answer
x = 36,690.60
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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.