Finding the Fourth Proportional to 79,816.68, 110,070.12 and 52,543.92
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Solution
The fourth proportional to 79,816.68, 110,070.12 and 52,543.92 is: 72,459.99
Step by Step Solution
- Step 1: Write the proportion equation
79,816.68 : 110,070.12 = 52,543.92 : x - Step 2: Convert to fraction form
79,816.68/110,070.12 = 52,543.92/x - Step 3: Cross multiply
79,816.68x = 110,070.12 × 52,543.92 - Step 4: Simplify right side
79,816.68x = 5,783,515,579.67 - Step 5: Solve for x
x = 5,783,515,579.67/79,816.68 - Step 6: Final answer
x = 72,459.99
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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.