Finding the Fourth Proportional to 68,718.10, 94,829.07 and 40,425.70
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Solution
The fourth proportional to 68,718.10, 94,829.07 and 40,425.70 is: 55,786.34
Step by Step Solution
- Step 1: Write the proportion equation
68,718.10 : 94,829.07 = 40,425.70 : x - Step 2: Convert to fraction form
68,718.10/94,829.07 = 40,425.70/x - Step 3: Cross multiply
68,718.10x = 94,829.07 × 40,425.70 - Step 4: Simplify right side
68,718.10x = 3,833,531,535.10 - Step 5: Solve for x
x = 3,833,531,535.10/68,718.10 - Step 6: Final answer
x = 55,786.34
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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.