Finding the Fourth Proportional to 79,108.88, 118,673.64 and 29,223.92
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Solution
The fourth proportional to 79,108.88, 118,673.64 and 29,223.92 is: 43,839.69
Step by Step Solution
- Step 1: Write the proportion equation
79,108.88 : 118,673.64 = 29,223.92 : x - Step 2: Convert to fraction form
79,108.88/118,673.64 = 29,223.92/x - Step 3: Cross multiply
79,108.88x = 118,673.64 × 29,223.92 - Step 4: Simplify right side
79,108.88x = 3,468,108,961.47 - Step 5: Solve for x
x = 3,468,108,961.47/79,108.88 - Step 6: Final answer
x = 43,839.69
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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.