Finding the Fourth Proportional to 80,434.71, 120,613.70 and 29,798.99
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Solution
The fourth proportional to 80,434.71, 120,613.70 and 29,798.99 is: 44,684.27
Step by Step Solution
- Step 1: Write the proportion equation
80,434.71 : 120,613.70 = 29,798.99 : x - Step 2: Convert to fraction form
80,434.71/120,613.70 = 29,798.99/x - Step 3: Cross multiply
80,434.71x = 120,613.70 × 29,798.99 - Step 4: Simplify right side
80,434.71x = 3,594,166,363.89 - Step 5: Solve for x
x = 3,594,166,363.89/80,434.71 - Step 6: Final answer
x = 44,684.27
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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.