Finding the Fourth Proportional to 74,329.40, 102,574.04 and 40,337.02
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Solution
The fourth proportional to 74,329.40, 102,574.04 and 40,337.02 is: 55,664.80
Step by Step Solution
- Step 1: Write the proportion equation
74,329.40 : 102,574.04 = 40,337.02 : x - Step 2: Convert to fraction form
74,329.40/102,574.04 = 40,337.02/x - Step 3: Cross multiply
74,329.40x = 102,574.04 × 40,337.02 - Step 4: Simplify right side
74,329.40x = 4,137,531,102.96 - Step 5: Solve for x
x = 4,137,531,102.96/74,329.40 - Step 6: Final answer
x = 55,664.80
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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.