Finding the Fourth Proportional to 83,172.42, 124,725.42 and 48,136.68
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Solution
The fourth proportional to 83,172.42, 124,725.42 and 48,136.68 is: 72,185.80
Step by Step Solution
- Step 1: Write the proportion equation
83,172.42 : 124,725.42 = 48,136.68 : x - Step 2: Convert to fraction form
83,172.42/124,725.42 = 48,136.68/x - Step 3: Cross multiply
83,172.42x = 124,725.42 × 48,136.68 - Step 4: Simplify right side
83,172.42x = 6,003,867,630.41 - Step 5: Solve for x
x = 6,003,867,630.41/83,172.42 - Step 6: Final answer
x = 72,185.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.