Finding the Fourth Proportional to 68,623.60, 102,935.40 and 27,065.20
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Solution
The fourth proportional to 68,623.60, 102,935.40 and 27,065.20 is: 40,597.80
Step by Step Solution
- Step 1: Write the proportion equation
68,623.60 : 102,935.40 = 27,065.20 : x - Step 2: Convert to fraction form
68,623.60/102,935.40 = 27,065.20/x - Step 3: Cross multiply
68,623.60x = 102,935.40 × 27,065.20 - Step 4: Simplify right side
68,623.60x = 2,785,967,188.08 - Step 5: Solve for x
x = 2,785,967,188.08/68,623.60 - Step 6: Final answer
x = 40,597.80
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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.