Finding the Fourth Proportional to 79,454.08, 109,647.41 and 43,644.09
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Solution
The fourth proportional to 79,454.08, 109,647.41 and 43,644.09 is: 60,229.27
Step by Step Solution
- Step 1: Write the proportion equation
79,454.08 : 109,647.41 = 43,644.09 : x - Step 2: Convert to fraction form
79,454.08/109,647.41 = 43,644.09/x - Step 3: Cross multiply
79,454.08x = 109,647.41 × 43,644.09 - Step 4: Simplify right side
79,454.08x = 4,785,461,623.26 - Step 5: Solve for x
x = 4,785,461,623.26/79,454.08 - Step 6: Final answer
x = 60,229.27
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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.