Finding the Fourth Proportional to 86,863.26, 119,871.30 and 47,119.26
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Solution
The fourth proportional to 86,863.26, 119,871.30 and 47,119.26 is: 65,024.58
Step by Step Solution
- Step 1: Write the proportion equation
86,863.26 : 119,871.30 = 47,119.26 : x - Step 2: Convert to fraction form
86,863.26/119,871.30 = 47,119.26/x - Step 3: Cross multiply
86,863.26x = 119,871.30 × 47,119.26 - Step 4: Simplify right side
86,863.26x = 5,648,246,951.24 - Step 5: Solve for x
x = 5,648,246,951.24/86,863.26 - Step 6: Final answer
x = 65,024.58
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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.