Finding the Fourth Proportional to 79,070.99, 109,163.07 and 52,291.17
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Solution
The fourth proportional to 79,070.99, 109,163.07 and 52,291.17 is: 72,191.65
Step by Step Solution
- Step 1: Write the proportion equation
79,070.99 : 109,163.07 = 52,291.17 : x - Step 2: Convert to fraction form
79,070.99/109,163.07 = 52,291.17/x - Step 3: Cross multiply
79,070.99x = 109,163.07 × 52,291.17 - Step 4: Simplify right side
79,070.99x = 5,708,264,651.09 - Step 5: Solve for x
x = 5,708,264,651.09/79,070.99 - Step 6: Final answer
x = 72,191.65
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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.