Finding the Fourth Proportional to 74,040.12, 102,175.26 and 40,506.12
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Solution
The fourth proportional to 74,040.12, 102,175.26 and 40,506.12 is: 55,898.39
Step by Step Solution
- Step 1: Write the proportion equation
74,040.12 : 102,175.26 = 40,506.12 : x - Step 2: Convert to fraction form
74,040.12/102,175.26 = 40,506.12/x - Step 3: Cross multiply
74,040.12x = 102,175.26 × 40,506.12 - Step 4: Simplify right side
74,040.12x = 4,138,723,342.59 - Step 5: Solve for x
x = 4,138,723,342.59/74,040.12 - Step 6: Final answer
x = 55,898.39
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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.