Finding the Fourth Proportional to 88,195.10, 121,704.63 and 47,908.80
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Solution
The fourth proportional to 88,195.10, 121,704.63 and 47,908.80 is: 66,111.64
Step by Step Solution
- Step 1: Write the proportion equation
88,195.10 : 121,704.63 = 47,908.80 : x - Step 2: Convert to fraction form
88,195.10/121,704.63 = 47,908.80/x - Step 3: Cross multiply
88,195.10x = 121,704.63 × 47,908.80 - Step 4: Simplify right side
88,195.10x = 5,830,722,598.09 - Step 5: Solve for x
x = 5,830,722,598.09/88,195.10 - Step 6: Final answer
x = 66,111.64
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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.