Finding the Fourth Proportional to 79,379.16, 109,548.84 and 52,474.92
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Solution
The fourth proportional to 79,379.16, 109,548.84 and 52,474.92 is: 72,419.09
Step by Step Solution
- Step 1: Write the proportion equation
79,379.16 : 109,548.84 = 52,474.92 : x - Step 2: Convert to fraction form
79,379.16/109,548.84 = 52,474.92/x - Step 3: Cross multiply
79,379.16x = 109,548.84 × 52,474.92 - Step 4: Simplify right side
79,379.16x = 5,748,566,615.09 - Step 5: Solve for x
x = 5,748,566,615.09/79,379.16 - Step 6: Final answer
x = 72,419.09
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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.