Finding the Fourth Proportional to 86,517.24, 119,338.66 and 76,282.08
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Solution
The fourth proportional to 86,517.24, 119,338.66 and 76,282.08 is: 105,220.66
Step by Step Solution
- Step 1: Write the proportion equation
86,517.24 : 119,338.66 = 76,282.08 : x - Step 2: Convert to fraction form
86,517.24/119,338.66 = 76,282.08/x - Step 3: Cross multiply
86,517.24x = 119,338.66 × 76,282.08 - Step 4: Simplify right side
86,517.24x = 9,103,401,209.21 - Step 5: Solve for x
x = 9,103,401,209.21/86,517.24 - Step 6: Final answer
x = 105,220.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.