Finding the Fourth Proportional to 73,985.16, 110,988.79 and 27,234.48
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Solution
The fourth proportional to 73,985.16, 110,988.79 and 27,234.48 is: 40,855.79
Step by Step Solution
- Step 1: Write the proportion equation
73,985.16 : 110,988.79 = 27,234.48 : x - Step 2: Convert to fraction form
73,985.16/110,988.79 = 27,234.48/x - Step 3: Cross multiply
73,985.16x = 110,988.79 × 27,234.48 - Step 4: Simplify right side
73,985.16x = 3,022,721,981.48 - Step 5: Solve for x
x = 3,022,721,981.48/73,985.16 - Step 6: Final answer
x = 40,855.79
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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.