Finding the Fourth Proportional to 79,799.91, 110,124.64 and 43,991.20
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Solution
The fourth proportional to 79,799.91, 110,124.64 and 43,991.20 is: 60,708.27
Step by Step Solution
- Step 1: Write the proportion equation
79,799.91 : 110,124.64 = 43,991.20 : x - Step 2: Convert to fraction form
79,799.91/110,124.64 = 43,991.20/x - Step 3: Cross multiply
79,799.91x = 110,124.64 × 43,991.20 - Step 4: Simplify right side
79,799.91x = 4,844,514,292.59 - Step 5: Solve for x
x = 4,844,514,292.59/79,799.91 - Step 6: Final answer
x = 60,708.27
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.