Finding the Fourth Proportional to 79,650.10, 119,479.47 and 20,486.26
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Solution
The fourth proportional to 79,650.10, 119,479.47 and 20,486.26 is: 30,730.50
Step by Step Solution
- Step 1: Write the proportion equation
79,650.10 : 119,479.47 = 20,486.26 : x - Step 2: Convert to fraction form
79,650.10/119,479.47 = 20,486.26/x - Step 3: Cross multiply
79,650.10x = 119,479.47 × 20,486.26 - Step 4: Simplify right side
79,650.10x = 2,447,687,487.08 - Step 5: Solve for x
x = 2,447,687,487.08/79,650.10 - Step 6: Final answer
x = 30,730.50
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1.5x scale
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.