Finding the Fourth Proportional to 74,284.74, 102,506.84 and 40,750.74
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Solution
The fourth proportional to 74,284.74, 102,506.84 and 40,750.74 is: 56,232.67
Step by Step Solution
- Step 1: Write the proportion equation
74,284.74 : 102,506.84 = 40,750.74 : x - Step 2: Convert to fraction form
74,284.74/102,506.84 = 40,750.74/x - Step 3: Cross multiply
74,284.74x = 102,506.84 × 40,750.74 - Step 4: Simplify right side
74,284.74x = 4,177,229,585.06 - Step 5: Solve for x
x = 4,177,229,585.06/74,284.74 - Step 6: Final answer
x = 56,232.67
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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.