Finding the Fourth Proportional to 79,995.12, 110,387.88 and 44,185.20
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Solution
The fourth proportional to 79,995.12, 110,387.88 and 44,185.20 is: 60,972.60
Step by Step Solution
- Step 1: Write the proportion equation
79,995.12 : 110,387.88 = 44,185.20 : x - Step 2: Convert to fraction form
79,995.12/110,387.88 = 44,185.20/x - Step 3: Cross multiply
79,995.12x = 110,387.88 × 44,185.20 - Step 4: Simplify right side
79,995.12x = 4,877,510,555.38 - Step 5: Solve for x
x = 4,877,510,555.38/79,995.12 - Step 6: Final answer
x = 60,972.60
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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.