Finding the Fourth Proportional to 115,876.63, 159,909.74 and 62,884.63
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Solution
The fourth proportional to 115,876.63, 159,909.74 and 62,884.63 is: 86,780.78
Step by Step Solution
- Step 1: Write the proportion equation
115,876.63 : 159,909.74 = 62,884.63 : x - Step 2: Convert to fraction form
115,876.63/159,909.74 = 62,884.63/x - Step 3: Cross multiply
115,876.63x = 159,909.74 × 62,884.63 - Step 4: Simplify right side
115,876.63x = 10,055,864,833.30 - Step 5: Solve for x
x = 10,055,864,833.30/115,876.63 - Step 6: Final answer
x = 86,780.78
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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.