Finding the Fourth Proportional to 98,270.49, 135,616.91 and 55,836.21
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Solution
The fourth proportional to 98,270.49, 135,616.91 and 55,836.21 is: 77,056.03
Step by Step Solution
- Step 1: Write the proportion equation
98,270.49 : 135,616.91 = 55,836.21 : x - Step 2: Convert to fraction form
98,270.49/135,616.91 = 55,836.21/x - Step 3: Cross multiply
98,270.49x = 135,616.91 × 55,836.21 - Step 4: Simplify right side
98,270.49x = 7,572,333,987.13 - Step 5: Solve for x
x = 7,572,333,987.13/98,270.49 - Step 6: Final answer
x = 77,056.03
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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.