Finding the Fourth Proportional to 74,318.64, 102,559.46 and 44,128.79
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Solution
The fourth proportional to 74,318.64, 102,559.46 and 44,128.79 is: 60,897.56
Step by Step Solution
- Step 1: Write the proportion equation
74,318.64 : 102,559.46 = 44,128.79 : x - Step 2: Convert to fraction form
74,318.64/102,559.46 = 44,128.79/x - Step 3: Cross multiply
74,318.64x = 102,559.46 × 44,128.79 - Step 4: Simplify right side
74,318.64x = 4,525,824,139.41 - Step 5: Solve for x
x = 4,525,824,139.41/74,318.64 - Step 6: Final answer
x = 60,897.56
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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.