Finding the Fourth Proportional to 79,863.58, 110,247.16 and 51,583.06
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Solution
The fourth proportional to 79,863.58, 110,247.16 and 51,583.06 is: 71,207.50
Step by Step Solution
- Step 1: Write the proportion equation
79,863.58 : 110,247.16 = 51,583.06 : x - Step 2: Convert to fraction form
79,863.58/110,247.16 = 51,583.06/x - Step 3: Cross multiply
79,863.58x = 110,247.16 × 51,583.06 - Step 4: Simplify right side
79,863.58x = 5,686,885,869.11 - Step 5: Solve for x
x = 5,686,885,869.11/79,863.58 - Step 6: Final answer
x = 71,207.50
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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.