Finding the Fourth Proportional to 98,651.08, 136,136.44 and 53,939.08
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Solution
The fourth proportional to 98,651.08, 136,136.44 and 53,939.08 is: 74,434.81
Step by Step Solution
- Step 1: Write the proportion equation
98,651.08 : 136,136.44 = 53,939.08 : x - Step 2: Convert to fraction form
98,651.08/136,136.44 = 53,939.08/x - Step 3: Cross multiply
98,651.08x = 136,136.44 × 53,939.08 - Step 4: Simplify right side
98,651.08x = 7,343,074,328.08 - Step 5: Solve for x
x = 7,343,074,328.08/98,651.08 - Step 6: Final answer
x = 74,434.81
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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.