Finding the Fourth Proportional to 76,599.12, 115,006.30 and 39,186.02
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Solution
The fourth proportional to 76,599.12, 115,006.30 and 39,186.02 is: 58,834.09
Step by Step Solution
- Step 1: Write the proportion equation
76,599.12 : 115,006.30 = 39,186.02 : x - Step 2: Convert to fraction form
76,599.12/115,006.30 = 39,186.02/x - Step 3: Cross multiply
76,599.12x = 115,006.30 × 39,186.02 - Step 4: Simplify right side
76,599.12x = 4,506,639,171.93 - Step 5: Solve for x
x = 4,506,639,171.93/76,599.12 - Step 6: Final answer
x = 58,834.09
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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.