Finding the Fourth Proportional to 87,766.68, 121,117.47 and 47,480.28
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Solution
The fourth proportional to 87,766.68, 121,117.47 and 47,480.28 is: 65,522.49
Step by Step Solution
- Step 1: Write the proportion equation
87,766.68 : 121,117.47 = 47,480.28 : x - Step 2: Convert to fraction form
87,766.68/121,117.47 = 47,480.28/x - Step 3: Cross multiply
87,766.68x = 121,117.47 × 47,480.28 - Step 4: Simplify right side
87,766.68x = 5,750,691,388.49 - Step 5: Solve for x
x = 5,750,691,388.49/87,766.68 - Step 6: Final answer
x = 65,522.49
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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.