Finding the Fourth Proportional to 79,776.24, 110,091.64 and 45,782.02
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Solution
The fourth proportional to 79,776.24, 110,091.64 and 45,782.02 is: 63,179.43
Step by Step Solution
- Step 1: Write the proportion equation
79,776.24 : 110,091.64 = 45,782.02 : x - Step 2: Convert to fraction form
79,776.24/110,091.64 = 45,782.02/x - Step 3: Cross multiply
79,776.24x = 110,091.64 × 45,782.02 - Step 4: Simplify right side
79,776.24x = 5,040,217,664.31 - Step 5: Solve for x
x = 5,040,217,664.31/79,776.24 - Step 6: Final answer
x = 63,179.43
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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.