Finding the Fourth Proportional to 75,977.99, 104,853.25 and 45,772.68
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Solution
The fourth proportional to 75,977.99, 104,853.25 and 45,772.68 is: 63,168.48
Step by Step Solution
- Step 1: Write the proportion equation
75,977.99 : 104,853.25 = 45,772.68 : x - Step 2: Convert to fraction form
75,977.99/104,853.25 = 45,772.68/x - Step 3: Cross multiply
75,977.99x = 104,853.25 × 45,772.68 - Step 4: Simplify right side
75,977.99x = 4,799,414,259.21 - Step 5: Solve for x
x = 4,799,414,259.21/75,977.99 - Step 6: Final answer
x = 63,168.48
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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.