Finding the Fourth Proportional to 87,863.79, 121,251.48 and 47,576.70
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Solution
The fourth proportional to 87,863.79, 121,251.48 and 47,576.70 is: 65,655.55
Step by Step Solution
- Step 1: Write the proportion equation
87,863.79 : 121,251.48 = 47,576.70 : x - Step 2: Convert to fraction form
87,863.79/121,251.48 = 47,576.70/x - Step 3: Cross multiply
87,863.79x = 121,251.48 × 47,576.70 - Step 4: Simplify right side
87,863.79x = 5,768,745,288.52 - Step 5: Solve for x
x = 5,768,745,288.52/87,863.79 - Step 6: Final answer
x = 65,655.55
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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.