Finding the Fourth Proportional to 98,989.48, 136,605.06 and 54,277.48
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Solution
The fourth proportional to 98,989.48, 136,605.06 and 54,277.48 is: 74,902.69
Step by Step Solution
- Step 1: Write the proportion equation
98,989.48 : 136,605.06 = 54,277.48 : x - Step 2: Convert to fraction form
98,989.48/136,605.06 = 54,277.48/x - Step 3: Cross multiply
98,989.48x = 136,605.06 × 54,277.48 - Step 4: Simplify right side
98,989.48x = 7,414,578,412.05 - Step 5: Solve for x
x = 7,414,578,412.05/98,989.48 - Step 6: Final answer
x = 74,902.69
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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.