Finding the Fourth Proportional to 86,341.48, 129,521.50 and 27,178.92
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Solution
The fourth proportional to 86,341.48, 129,521.50 and 27,178.92 is: 40,771.30
Step by Step Solution
- Step 1: Write the proportion equation
86,341.48 : 129,521.50 = 27,178.92 : x - Step 2: Convert to fraction form
86,341.48/129,521.50 = 27,178.92/x - Step 3: Cross multiply
86,341.48x = 129,521.50 × 27,178.92 - Step 4: Simplify right side
86,341.48x = 3,520,254,486.78 - Step 5: Solve for x
x = 3,520,254,486.78/86,341.48 - Step 6: Final answer
x = 40,771.30
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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.