Finding the Fourth Proportional to 74,955.14, 103,435.02 and 40,964.75
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Solution
The fourth proportional to 74,955.14, 103,435.02 and 40,964.75 is: 56,529.68
Step by Step Solution
- Step 1: Write the proportion equation
74,955.14 : 103,435.02 = 40,964.75 : x - Step 2: Convert to fraction form
74,955.14/103,435.02 = 40,964.75/x - Step 3: Cross multiply
74,955.14x = 103,435.02 × 40,964.75 - Step 4: Simplify right side
74,955.14x = 4,237,189,735.55 - Step 5: Solve for x
x = 4,237,189,735.55/74,955.14 - Step 6: Final answer
x = 56,529.68
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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.