Finding the Fourth Proportional to 74,568.51, 102,904.74 and 40,576.99
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Solution
The fourth proportional to 74,568.51, 102,904.74 and 40,576.99 is: 55,996.35
Step by Step Solution
- Step 1: Write the proportion equation
74,568.51 : 102,904.74 = 40,576.99 : x - Step 2: Convert to fraction form
74,568.51/102,904.74 = 40,576.99/x - Step 3: Cross multiply
74,568.51x = 102,904.74 × 40,576.99 - Step 4: Simplify right side
74,568.51x = 4,175,564,605.93 - Step 5: Solve for x
x = 4,175,564,605.93/74,568.51 - Step 6: Final answer
x = 55,996.35
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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.