Finding the Fourth Proportional to 80,756.91, 121,056.68 and 38,625.99
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Solution
The fourth proportional to 80,756.91, 121,056.68 and 38,625.99 is: 57,901.35
Step by Step Solution
- Step 1: Write the proportion equation
80,756.91 : 121,056.68 = 38,625.99 : x - Step 2: Convert to fraction form
80,756.91/121,056.68 = 38,625.99/x - Step 3: Cross multiply
80,756.91x = 121,056.68 × 38,625.99 - Step 4: Simplify right side
80,756.91x = 4,675,933,917.98 - Step 5: Solve for x
x = 4,675,933,917.98/80,756.91 - Step 6: Final answer
x = 57,901.35
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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.