Finding the Fourth Proportional to 83,502.52, 115,236.14 and 45,776.44
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Solution
The fourth proportional to 83,502.52, 115,236.14 and 45,776.44 is: 63,172.95
Step by Step Solution
- Step 1: Write the proportion equation
83,502.52 : 115,236.14 = 45,776.44 : x - Step 2: Convert to fraction form
83,502.52/115,236.14 = 45,776.44/x - Step 3: Cross multiply
83,502.52x = 115,236.14 × 45,776.44 - Step 4: Simplify right side
83,502.52x = 5,275,100,248.54 - Step 5: Solve for x
x = 5,275,100,248.54/83,502.52 - Step 6: Final answer
x = 63,172.95
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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.