Finding the Fourth Proportional to 98,358.26, 135,729.33 and 53,637.62
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Solution
The fourth proportional to 98,358.26, 135,729.33 and 53,637.62 is: 74,017.15
Step by Step Solution
- Step 1: Write the proportion equation
98,358.26 : 135,729.33 = 53,637.62 : x - Step 2: Convert to fraction form
98,358.26/135,729.33 = 53,637.62/x - Step 3: Cross multiply
98,358.26x = 135,729.33 × 53,637.62 - Step 4: Simplify right side
98,358.26x = 7,280,198,225.39 - Step 5: Solve for x
x = 7,280,198,225.39/98,358.26 - Step 6: Final answer
x = 74,017.15
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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.