Finding the Fourth Proportional to 79,939.08, 110,313.01 and 44,128.98
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Solution
The fourth proportional to 79,939.08, 110,313.01 and 44,128.98 is: 60,896.38
Step by Step Solution
- Step 1: Write the proportion equation
79,939.08 : 110,313.01 = 44,128.98 : x - Step 2: Convert to fraction form
79,939.08/110,313.01 = 44,128.98/x - Step 3: Cross multiply
79,939.08x = 110,313.01 × 44,128.98 - Step 4: Simplify right side
79,939.08x = 4,868,000,612.03 - Step 5: Solve for x
x = 4,868,000,612.03/79,939.08 - Step 6: Final answer
x = 60,896.38
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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.