Finding the Fourth Proportional to 73,968.12, 101,972.79 and 51,268.14
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Solution
The fourth proportional to 73,968.12, 101,972.79 and 51,268.14 is: 70,678.49
Step by Step Solution
- Step 1: Write the proportion equation
73,968.12 : 101,972.79 = 51,268.14 : x - Step 2: Convert to fraction form
73,968.12/101,972.79 = 51,268.14/x - Step 3: Cross multiply
73,968.12x = 101,972.79 × 51,268.14 - Step 4: Simplify right side
73,968.12x = 5,227,955,273.91 - Step 5: Solve for x
x = 5,227,955,273.91/73,968.12 - Step 6: Final answer
x = 70,678.49
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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.