Finding the Fourth Proportional to 79,728.98, 110,026.69 and 43,919.08
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Solution
The fourth proportional to 79,728.98, 110,026.69 and 43,919.08 is: 60,608.71
Step by Step Solution
- Step 1: Write the proportion equation
79,728.98 : 110,026.69 = 43,919.08 : x - Step 2: Convert to fraction form
79,728.98/110,026.69 = 43,919.08/x - Step 3: Cross multiply
79,728.98x = 110,026.69 × 43,919.08 - Step 4: Simplify right side
79,728.98x = 4,832,270,615.38 - Step 5: Solve for x
x = 4,832,270,615.38/79,728.98 - Step 6: Final answer
x = 60,608.71
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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.