Finding the Fourth Proportional to 83,727.44, 115,553.94 and 47,916.68
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Solution
The fourth proportional to 83,727.44, 115,553.94 and 47,916.68 is: 66,130.79
Step by Step Solution
- Step 1: Write the proportion equation
83,727.44 : 115,553.94 = 47,916.68 : x - Step 2: Convert to fraction form
83,727.44/115,553.94 = 47,916.68/x - Step 3: Cross multiply
83,727.44x = 115,553.94 × 47,916.68 - Step 4: Simplify right side
83,727.44x = 5,536,961,327.78 - Step 5: Solve for x
x = 5,536,961,327.78/83,727.44 - Step 6: Final answer
x = 66,130.79
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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.