Finding the Fourth Proportional to 99,735.68, 137,685.12 and 62,022.08
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Solution
The fourth proportional to 99,735.68, 137,685.12 and 62,022.08 is: 85,621.49
Step by Step Solution
- Step 1: Write the proportion equation
99,735.68 : 137,685.12 = 62,022.08 : x - Step 2: Convert to fraction form
99,735.68/137,685.12 = 62,022.08/x - Step 3: Cross multiply
99,735.68x = 137,685.12 × 62,022.08 - Step 4: Simplify right side
99,735.68x = 8,539,517,527.45 - Step 5: Solve for x
x = 8,539,517,527.45/99,735.68 - Step 6: Final answer
x = 85,621.49
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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.