Finding the Fourth Proportional to 76,988.28, 115,485.69 and 24,396.60
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Solution
The fourth proportional to 76,988.28, 115,485.69 and 24,396.60 is: 36,595.94
Step by Step Solution
- Step 1: Write the proportion equation
76,988.28 : 115,485.69 = 24,396.60 : x - Step 2: Convert to fraction form
76,988.28/115,485.69 = 24,396.60/x - Step 3: Cross multiply
76,988.28x = 115,485.69 × 24,396.60 - Step 4: Simplify right side
76,988.28x = 2,817,458,184.65 - Step 5: Solve for x
x = 2,817,458,184.65/76,988.28 - Step 6: Final answer
x = 36,595.94
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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.