Finding the Fourth Proportional to 85,525.78, 118,031.35 and 49,715.68
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Solution
The fourth proportional to 85,525.78, 118,031.35 and 49,715.68 is: 68,610.99
Step by Step Solution
- Step 1: Write the proportion equation
85,525.78 : 118,031.35 = 49,715.68 : x - Step 2: Convert to fraction form
85,525.78/118,031.35 = 49,715.68/x - Step 3: Cross multiply
85,525.78x = 118,031.35 × 49,715.68 - Step 4: Simplify right side
85,525.78x = 5,868,008,112.12 - Step 5: Solve for x
x = 5,868,008,112.12/85,525.78 - Step 6: Final answer
x = 68,610.99
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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.