Finding the Fourth Proportional to 68,615.80, 102,923.70 and 53,063.80
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Solution
The fourth proportional to 68,615.80, 102,923.70 and 53,063.80 is: 79,595.70
Step by Step Solution
- Step 1: Write the proportion equation
68,615.80 : 102,923.70 = 53,063.80 : x - Step 2: Convert to fraction form
68,615.80/102,923.70 = 53,063.80/x - Step 3: Cross multiply
68,615.80x = 102,923.70 × 53,063.80 - Step 4: Simplify right side
68,615.80x = 5,461,522,632.06 - Step 5: Solve for x
x = 5,461,522,632.06/68,615.80 - Step 6: Final answer
x = 79,595.70
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1.5x scale
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.