Finding the Fourth Proportional to 87,730.44, 131,564.58 and 28,555.08
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Solution
The fourth proportional to 87,730.44, 131,564.58 and 28,555.08 is: 42,822.50
Step by Step Solution
- Step 1: Write the proportion equation
87,730.44 : 131,564.58 = 28,555.08 : x - Step 2: Convert to fraction form
87,730.44/131,564.58 = 28,555.08/x - Step 3: Cross multiply
87,730.44x = 131,564.58 × 28,555.08 - Step 4: Simplify right side
87,730.44x = 3,756,837,107.07 - Step 5: Solve for x
x = 3,756,837,107.07/87,730.44 - Step 6: Final answer
x = 42,822.50
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1.5x scale
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.