Finding the Fourth Proportional to 68,318.28, 102,482.28 and 21,570.75
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Solution
The fourth proportional to 68,318.28, 102,482.28 and 21,570.75 is: 32,357.66
Step by Step Solution
- Step 1: Write the proportion equation
68,318.28 : 102,482.28 = 21,570.75 : x - Step 2: Convert to fraction form
68,318.28/102,482.28 = 21,570.75/x - Step 3: Cross multiply
68,318.28x = 102,482.28 × 21,570.75 - Step 4: Simplify right side
68,318.28x = 2,210,619,641.31 - Step 5: Solve for x
x = 2,210,619,641.31/68,318.28 - Step 6: Final answer
x = 32,357.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.