Finding the Fourth Proportional to 87,701.64, 131,554.08 and 28,537.08
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Solution
The fourth proportional to 87,701.64, 131,554.08 and 28,537.08 is: 42,806.15
Step by Step Solution
- Step 1: Write the proportion equation
87,701.64 : 131,554.08 = 28,537.08 : x - Step 2: Convert to fraction form
87,701.64/131,554.08 = 28,537.08/x - Step 3: Cross multiply
87,701.64x = 131,554.08 × 28,537.08 - Step 4: Simplify right side
87,701.64x = 3,754,169,305.29 - Step 5: Solve for x
x = 3,754,169,305.29/87,701.64 - Step 6: Final answer
x = 42,806.15
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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.