Finding the Fourth Proportional to 68,781.42, 103,177.56 and 29,338.80
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Solution
The fourth proportional to 68,781.42, 103,177.56 and 29,338.80 is: 44,010.52
Step by Step Solution
- Step 1: Write the proportion equation
68,781.42 : 103,177.56 = 29,338.80 : x - Step 2: Convert to fraction form
68,781.42/103,177.56 = 29,338.80/x - Step 3: Cross multiply
68,781.42x = 103,177.56 × 29,338.80 - Step 4: Simplify right side
68,781.42x = 3,027,105,797.33 - Step 5: Solve for x
x = 3,027,105,797.33/68,781.42 - Step 6: Final answer
x = 44,010.52
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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.