Finding the Fourth Proportional to 80,762.88, 121,149.17 and 25,358.88
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Solution
The fourth proportional to 80,762.88, 121,149.17 and 25,358.88 is: 38,039.84
Step by Step Solution
- Step 1: Write the proportion equation
80,762.88 : 121,149.17 = 25,358.88 : x - Step 2: Convert to fraction form
80,762.88/121,149.17 = 25,358.88/x - Step 3: Cross multiply
80,762.88x = 121,149.17 × 25,358.88 - Step 4: Simplify right side
80,762.88x = 3,072,207,264.13 - Step 5: Solve for x
x = 3,072,207,264.13/80,762.88 - Step 6: Final answer
x = 38,039.84
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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.