Finding the Fourth Proportional to 87,282.06, 130,922.97 and 31,878.06
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Solution
The fourth proportional to 87,282.06, 130,922.97 and 31,878.06 is: 47,817.05
Step by Step Solution
- Step 1: Write the proportion equation
87,282.06 : 130,922.97 = 31,878.06 : x - Step 2: Convert to fraction form
87,282.06/130,922.97 = 31,878.06/x - Step 3: Cross multiply
87,282.06x = 130,922.97 × 31,878.06 - Step 4: Simplify right side
87,282.06x = 4,173,570,293.04 - Step 5: Solve for x
x = 4,173,570,293.04/87,282.06 - Step 6: Final answer
x = 47,817.05
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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.