Finding the Fourth Proportional to 91,108.74, 125,691.31 and 57,094.08
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Solution
The fourth proportional to 91,108.74, 125,691.31 and 57,094.08 is: 78,765.55
Step by Step Solution
- Step 1: Write the proportion equation
91,108.74 : 125,691.31 = 57,094.08 : x - Step 2: Convert to fraction form
91,108.74/125,691.31 = 57,094.08/x - Step 3: Cross multiply
91,108.74x = 125,691.31 × 57,094.08 - Step 4: Simplify right side
91,108.74x = 7,176,229,708.44 - Step 5: Solve for x
x = 7,176,229,708.44/91,108.74 - Step 6: Final answer
x = 78,765.55
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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.