Finding the Fourth Proportional to 79,135.41, 109,202.77 and 43,318.63
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Solution
The fourth proportional to 79,135.41, 109,202.77 and 43,318.63 is: 59,777.46
Step by Step Solution
- Step 1: Write the proportion equation
79,135.41 : 109,202.77 = 43,318.63 : x - Step 2: Convert to fraction form
79,135.41/109,202.77 = 43,318.63/x - Step 3: Cross multiply
79,135.41x = 109,202.77 × 43,318.63 - Step 4: Simplify right side
79,135.41x = 4,730,514,007.30 - Step 5: Solve for x
x = 4,730,514,007.30/79,135.41 - Step 6: Final answer
x = 59,777.46
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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.