Finding the Fourth Proportional to 79,931.75, 110,306.68 and 44,121.78
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Solution
The fourth proportional to 79,931.75, 110,306.68 and 44,121.78 is: 60,888.54
Step by Step Solution
- Step 1: Write the proportion equation
79,931.75 : 110,306.68 = 44,121.78 : x - Step 2: Convert to fraction form
79,931.75/110,306.68 = 44,121.78/x - Step 3: Cross multiply
79,931.75x = 110,306.68 × 44,121.78 - Step 4: Simplify right side
79,931.75x = 4,866,926,957.19 - Step 5: Solve for x
x = 4,866,926,957.19/79,931.75 - Step 6: Final answer
x = 60,888.54
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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.