Finding the Fourth Proportional to 75,136.51, 103,664.91 and 43,301.08
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Solution
The fourth proportional to 75,136.51, 103,664.91 and 43,301.08 is: 59,741.96
Step by Step Solution
- Step 1: Write the proportion equation
75,136.51 : 103,664.91 = 43,301.08 : x - Step 2: Convert to fraction form
75,136.51/103,664.91 = 43,301.08/x - Step 3: Cross multiply
75,136.51x = 103,664.91 × 43,301.08 - Step 4: Simplify right side
75,136.51x = 4,488,802,561.10 - Step 5: Solve for x
x = 4,488,802,561.10/75,136.51 - Step 6: Final answer
x = 59,741.96
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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.