Finding the Fourth Proportional to 98,210.48, 135,531.36 and 55,769.88
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Solution
The fourth proportional to 98,210.48, 135,531.36 and 55,769.88 is: 76,962.94
Step by Step Solution
- Step 1: Write the proportion equation
98,210.48 : 135,531.36 = 55,769.88 : x - Step 2: Convert to fraction form
98,210.48/135,531.36 = 55,769.88/x - Step 3: Cross multiply
98,210.48x = 135,531.36 × 55,769.88 - Step 4: Simplify right side
98,210.48x = 7,558,567,683.44 - Step 5: Solve for x
x = 7,558,567,683.44/98,210.48 - Step 6: Final answer
x = 76,962.94
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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.