Finding the Fourth Proportional to 77,565.10, 107,042.37 and 43,579.63
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Solution
The fourth proportional to 77,565.10, 107,042.37 and 43,579.63 is: 60,141.31
Step by Step Solution
- Step 1: Write the proportion equation
77,565.10 : 107,042.37 = 43,579.63 : x - Step 2: Convert to fraction form
77,565.10/107,042.37 = 43,579.63/x - Step 3: Cross multiply
77,565.10x = 107,042.37 × 43,579.63 - Step 4: Simplify right side
77,565.10x = 4,664,866,878.92 - Step 5: Solve for x
x = 4,664,866,878.92/77,565.10 - Step 6: Final answer
x = 60,141.31
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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.