Finding the Fourth Proportional to 83,722.68, 115,533.36 and 45,996.12
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Solution
The fourth proportional to 83,722.68, 115,533.36 and 45,996.12 is: 63,472.48
Step by Step Solution
- Step 1: Write the proportion equation
83,722.68 : 115,533.36 = 45,996.12 : x - Step 2: Convert to fraction form
83,722.68/115,533.36 = 45,996.12/x - Step 3: Cross multiply
83,722.68x = 115,533.36 × 45,996.12 - Step 4: Simplify right side
83,722.68x = 5,314,086,290.56 - Step 5: Solve for x
x = 5,314,086,290.56/83,722.68 - Step 6: Final answer
x = 63,472.48
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Double scale
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1.5x scale
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.