Finding the Fourth Proportional to 85,296.78, 117,700.11 and 49,479.84
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Solution
The fourth proportional to 85,296.78, 117,700.11 and 49,479.84 is: 68,276.70
Step by Step Solution
- Step 1: Write the proportion equation
85,296.78 : 117,700.11 = 49,479.84 : x - Step 2: Convert to fraction form
85,296.78/117,700.11 = 49,479.84/x - Step 3: Cross multiply
85,296.78x = 117,700.11 × 49,479.84 - Step 4: Simplify right side
85,296.78x = 5,823,782,610.78 - Step 5: Solve for x
x = 5,823,782,610.78/85,296.78 - Step 6: Final answer
x = 68,276.70
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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.