Finding the Fourth Proportional to 79,712.74, 119,577.21 and 27,125.92
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Solution
The fourth proportional to 79,712.74, 119,577.21 and 27,125.92 is: 40,691.64
Step by Step Solution
- Step 1: Write the proportion equation
79,712.74 : 119,577.21 = 27,125.92 : x - Step 2: Convert to fraction form
79,712.74/119,577.21 = 27,125.92/x - Step 3: Cross multiply
79,712.74x = 119,577.21 × 27,125.92 - Step 4: Simplify right side
79,712.74x = 3,243,641,832.28 - Step 5: Solve for x
x = 3,243,641,832.28/79,712.74 - Step 6: Final answer
x = 40,691.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.