Finding the Fourth Proportional to 79,830.84, 110,173.95 and 45,843.78
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Solution
The fourth proportional to 79,830.84, 110,173.95 and 45,843.78 is: 63,268.66
Step by Step Solution
- Step 1: Write the proportion equation
79,830.84 : 110,173.95 = 45,843.78 : x - Step 2: Convert to fraction form
79,830.84/110,173.95 = 45,843.78/x - Step 3: Cross multiply
79,830.84x = 110,173.95 × 45,843.78 - Step 4: Simplify right side
79,830.84x = 5,050,790,325.53 - Step 5: Solve for x
x = 5,050,790,325.53/79,830.84 - Step 6: Final answer
x = 63,268.66
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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.