Finding the Fourth Proportional to 76,934.10, 115,389.60 and 24,336.75
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Solution
The fourth proportional to 76,934.10, 115,389.60 and 24,336.75 is: 36,501.47
Step by Step Solution
- Step 1: Write the proportion equation
76,934.10 : 115,389.60 = 24,336.75 : x - Step 2: Convert to fraction form
76,934.10/115,389.60 = 24,336.75/x - Step 3: Cross multiply
76,934.10x = 115,389.60 × 24,336.75 - Step 4: Simplify right side
76,934.10x = 2,808,207,847.80 - Step 5: Solve for x
x = 2,808,207,847.80/76,934.10 - Step 6: Final answer
x = 36,501.47
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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.