Finding the Fourth Proportional to 79,330.88, 109,479.84 and 47,493.44
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Solution
The fourth proportional to 79,330.88, 109,479.84 and 47,493.44 is: 65,542.88
Step by Step Solution
- Step 1: Write the proportion equation
79,330.88 : 109,479.84 = 47,493.44 : x - Step 2: Convert to fraction form
79,330.88/109,479.84 = 47,493.44/x - Step 3: Cross multiply
79,330.88x = 109,479.84 × 47,493.44 - Step 4: Simplify right side
79,330.88x = 5,199,574,212.25 - Step 5: Solve for x
x = 5,199,574,212.25/79,330.88 - Step 6: Final answer
x = 65,542.88
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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.