Finding the Fourth Proportional to 79,805.94, 110,132.20 and 45,816.63
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Solution
The fourth proportional to 79,805.94, 110,132.20 and 45,816.63 is: 63,226.95
Step by Step Solution
- Step 1: Write the proportion equation
79,805.94 : 110,132.20 = 45,816.63 : x - Step 2: Convert to fraction form
79,805.94/110,132.20 = 45,816.63/x - Step 3: Cross multiply
79,805.94x = 110,132.20 × 45,816.63 - Step 4: Simplify right side
79,805.94x = 5,045,886,143.94 - Step 5: Solve for x
x = 5,045,886,143.94/79,805.94 - Step 6: Final answer
x = 63,226.95
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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.