Finding the Fourth Proportional to 79,887.58, 110,284.81 and 49,682.63
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Solution
The fourth proportional to 79,887.58, 110,284.81 and 49,682.63 is: 68,586.88
Step by Step Solution
- Step 1: Write the proportion equation
79,887.58 : 110,284.81 = 49,682.63 : x - Step 2: Convert to fraction form
79,887.58/110,284.81 = 49,682.63/x - Step 3: Cross multiply
79,887.58x = 110,284.81 × 49,682.63 - Step 4: Simplify right side
79,887.58x = 5,479,239,701.09 - Step 5: Solve for x
x = 5,479,239,701.09/79,887.58 - Step 6: Final answer
x = 68,586.88
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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.