Finding the Fourth Proportional to 91,423.53, 125,883.99 and 80,029.26
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Solution
The fourth proportional to 91,423.53, 125,883.99 and 80,029.26 is: 110,194.85
Step by Step Solution
- Step 1: Write the proportion equation
91,423.53 : 125,883.99 = 80,029.26 : x - Step 2: Convert to fraction form
91,423.53/125,883.99 = 80,029.26/x - Step 3: Cross multiply
91,423.53x = 125,883.99 × 80,029.26 - Step 4: Simplify right side
91,423.53x = 10,074,402,565.55 - Step 5: Solve for x
x = 10,074,402,565.55/91,423.53 - Step 6: Final answer
x = 110,194.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.