Finding the Fourth Proportional to 98,347.84, 135,718.56 and 55,324.08
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Solution
The fourth proportional to 98,347.84, 135,718.56 and 55,324.08 is: 76,346.41
Step by Step Solution
- Step 1: Write the proportion equation
98,347.84 : 135,718.56 = 55,324.08 : x - Step 2: Convert to fraction form
98,347.84/135,718.56 = 55,324.08/x - Step 3: Cross multiply
98,347.84x = 135,718.56 × 55,324.08 - Step 4: Simplify right side
98,347.84x = 7,508,504,470.92 - Step 5: Solve for x
x = 7,508,504,470.92/98,347.84 - Step 6: Final answer
x = 76,346.41
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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.