Finding the Fourth Proportional to 91,271.96, 125,902.74 and 54,948.14
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Solution
The fourth proportional to 91,271.96, 125,902.74 and 54,948.14 is: 75,796.79
Step by Step Solution
- Step 1: Write the proportion equation
91,271.96 : 125,902.74 = 54,948.14 : x - Step 2: Convert to fraction form
91,271.96/125,902.74 = 54,948.14/x - Step 3: Cross multiply
91,271.96x = 125,902.74 × 54,948.14 - Step 4: Simplify right side
91,271.96x = 6,918,121,383.90 - Step 5: Solve for x
x = 6,918,121,383.90/91,271.96 - Step 6: Final answer
x = 75,796.79
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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.