Finding the Fourth Proportional to 79,319.24, 118,989.84 and 26,743.76
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Solution
The fourth proportional to 79,319.24, 118,989.84 and 26,743.76 is: 40,119.34
Step by Step Solution
- Step 1: Write the proportion equation
79,319.24 : 118,989.84 = 26,743.76 : x - Step 2: Convert to fraction form
79,319.24/118,989.84 = 26,743.76/x - Step 3: Cross multiply
79,319.24x = 118,989.84 × 26,743.76 - Step 4: Simplify right side
79,319.24x = 3,182,235,723.40 - Step 5: Solve for x
x = 3,182,235,723.40/79,319.24 - Step 6: Final answer
x = 40,119.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.