Finding the Fourth Proportional to 74,489.10, 102,794.94 and 40,955.10
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Solution
The fourth proportional to 74,489.10, 102,794.94 and 40,955.10 is: 56,518.03
Step by Step Solution
- Step 1: Write the proportion equation
74,489.10 : 102,794.94 = 40,955.10 : x - Step 2: Convert to fraction form
74,489.10/102,794.94 = 40,955.10/x - Step 3: Cross multiply
74,489.10x = 102,794.94 × 40,955.10 - Step 4: Simplify right side
74,489.10x = 4,209,977,047.19 - Step 5: Solve for x
x = 4,209,977,047.19/74,489.10 - Step 6: Final answer
x = 56,518.03
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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.