Finding the Fourth Proportional to 77,008.20, 115,516.38 and 24,421.80
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Solution
The fourth proportional to 77,008.20, 115,516.38 and 24,421.80 is: 36,633.99
Step by Step Solution
- Step 1: Write the proportion equation
77,008.20 : 115,516.38 = 24,421.80 : x - Step 2: Convert to fraction form
77,008.20/115,516.38 = 24,421.80/x - Step 3: Cross multiply
77,008.20x = 115,516.38 × 24,421.80 - Step 4: Simplify right side
77,008.20x = 2,821,117,929.08 - Step 5: Solve for x
x = 2,821,117,929.08/77,008.20 - Step 6: Final answer
x = 36,633.99
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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.