Finding the Fourth Proportional to 98,812.74, 136,360.66 and 53,489.56
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Solution
The fourth proportional to 98,812.74, 136,360.66 and 53,489.56 is: 73,815.09
Step by Step Solution
- Step 1: Write the proportion equation
98,812.74 : 136,360.66 = 53,489.56 : x - Step 2: Convert to fraction form
98,812.74/136,360.66 = 53,489.56/x - Step 3: Cross multiply
98,812.74x = 136,360.66 × 53,489.56 - Step 4: Simplify right side
98,812.74x = 7,293,871,230.08 - Step 5: Solve for x
x = 7,293,871,230.08/98,812.74 - Step 6: Final answer
x = 73,815.09
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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.