Finding the Fourth Proportional to 88,243.97, 121,731.05 and 54,651.65
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Solution
The fourth proportional to 88,243.97, 121,731.05 and 54,651.65 is: 75,391.02
Step by Step Solution
- Step 1: Write the proportion equation
88,243.97 : 121,731.05 = 54,651.65 : x - Step 2: Convert to fraction form
88,243.97/121,731.05 = 54,651.65/x - Step 3: Cross multiply
88,243.97x = 121,731.05 × 54,651.65 - Step 4: Simplify right side
88,243.97x = 6,652,802,266.71 - Step 5: Solve for x
x = 6,652,802,266.71/88,243.97 - Step 6: Final answer
x = 75,391.02
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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.