Finding the Fourth Proportional to 88,274.06, 121,816.76 and 47,988.84
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Solution
The fourth proportional to 88,274.06, 121,816.76 and 47,988.84 is: 66,223.81
Step by Step Solution
- Step 1: Write the proportion equation
88,274.06 : 121,816.76 = 47,988.84 : x - Step 2: Convert to fraction form
88,274.06/121,816.76 = 47,988.84/x - Step 3: Cross multiply
88,274.06x = 121,816.76 × 47,988.84 - Step 4: Simplify right side
88,274.06x = 5,845,844,515.85 - Step 5: Solve for x
x = 5,845,844,515.85/88,274.06 - Step 6: Final answer
x = 66,223.81
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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.