Finding the Fourth Proportional to 79,728.99, 110,025.49 and 43,918.17
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Solution
The fourth proportional to 79,728.99, 110,025.49 and 43,918.17 is: 60,606.79
Step by Step Solution
- Step 1: Write the proportion equation
79,728.99 : 110,025.49 = 43,918.17 : x - Step 2: Convert to fraction form
79,728.99/110,025.49 = 43,918.17/x - Step 3: Cross multiply
79,728.99x = 110,025.49 × 43,918.17 - Step 4: Simplify right side
79,728.99x = 4,832,118,174.15 - Step 5: Solve for x
x = 4,832,118,174.15/79,728.99 - Step 6: Final answer
x = 60,606.79
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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.