Finding the Fourth Proportional to 87,564.65, 120,836.00 and 53,560.44
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Solution
The fourth proportional to 87,564.65, 120,836.00 and 53,560.44 is: 73,911.45
Step by Step Solution
- Step 1: Write the proportion equation
87,564.65 : 120,836.00 = 53,560.44 : x - Step 2: Convert to fraction form
87,564.65/120,836.00 = 53,560.44/x - Step 3: Cross multiply
87,564.65x = 120,836.00 × 53,560.44 - Step 4: Simplify right side
87,564.65x = 6,472,029,461.74 - Step 5: Solve for x
x = 6,472,029,461.74/87,564.65 - Step 6: Final answer
x = 73,911.45
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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.