Finding the Fourth Proportional to 87,734.65, 121,074.19 and 47,448.42
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Solution
The fourth proportional to 87,734.65, 121,074.19 and 47,448.42 is: 65,479.02
Step by Step Solution
- Step 1: Write the proportion equation
87,734.65 : 121,074.19 = 47,448.42 : x - Step 2: Convert to fraction form
87,734.65/121,074.19 = 47,448.42/x - Step 3: Cross multiply
87,734.65x = 121,074.19 × 47,448.42 - Step 4: Simplify right side
87,734.65x = 5,744,779,018.28 - Step 5: Solve for x
x = 5,744,779,018.28/87,734.65 - Step 6: Final answer
x = 65,479.02
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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.