Finding the Fourth Proportional to 98,349.84, 135,721.32 and 55,326.08
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Solution
The fourth proportional to 98,349.84, 135,721.32 and 55,326.08 is: 76,349.17
Step by Step Solution
- Step 1: Write the proportion equation
98,349.84 : 135,721.32 = 55,326.08 : x - Step 2: Convert to fraction form
98,349.84/135,721.32 = 55,326.08/x - Step 3: Cross multiply
98,349.84x = 135,721.32 × 55,326.08 - Step 4: Simplify right side
98,349.84x = 7,508,928,608.03 - Step 5: Solve for x
x = 7,508,928,608.03/98,349.84 - Step 6: Final answer
x = 76,349.17
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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.