Finding the Fourth Proportional to 68,611.16, 102,868.14 and 26,455.52
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Solution
The fourth proportional to 68,611.16, 102,868.14 and 26,455.52 is: 39,664.54
Step by Step Solution
- Step 1: Write the proportion equation
68,611.16 : 102,868.14 = 26,455.52 : x - Step 2: Convert to fraction form
68,611.16/102,868.14 = 26,455.52/x - Step 3: Cross multiply
68,611.16x = 102,868.14 × 26,455.52 - Step 4: Simplify right side
68,611.16x = 2,721,430,135.13 - Step 5: Solve for x
x = 2,721,430,135.13/68,611.16 - Step 6: Final answer
x = 39,664.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.