Finding the Fourth Proportional to 87,529.69, 131,266.99 and 28,351.63
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Solution
The fourth proportional to 87,529.69, 131,266.99 and 28,351.63 is: 42,518.52
Step by Step Solution
- Step 1: Write the proportion equation
87,529.69 : 131,266.99 = 28,351.63 : x - Step 2: Convert to fraction form
87,529.69/131,266.99 = 28,351.63/x - Step 3: Cross multiply
87,529.69x = 131,266.99 × 28,351.63 - Step 4: Simplify right side
87,529.69x = 3,721,633,131.69 - Step 5: Solve for x
x = 3,721,633,131.69/87,529.69 - Step 6: Final answer
x = 42,518.52
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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.