Finding the Fourth Proportional to 87,293.75, 130,998.05 and 47,878.55
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Solution
The fourth proportional to 87,293.75, 130,998.05 and 47,878.55 is: 71,849.32
Step by Step Solution
- Step 1: Write the proportion equation
87,293.75 : 130,998.05 = 47,878.55 : x - Step 2: Convert to fraction form
87,293.75/130,998.05 = 47,878.55/x - Step 3: Cross multiply
87,293.75x = 130,998.05 × 47,878.55 - Step 4: Simplify right side
87,293.75x = 6,271,995,792.44 - Step 5: Solve for x
x = 6,271,995,792.44/87,293.75 - Step 6: Final answer
x = 71,849.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.