Finding the Fourth Proportional to 74,599.71, 102,948.91 and 40,609.18
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Solution
The fourth proportional to 74,599.71, 102,948.91 and 40,609.18 is: 56,041.37
Step by Step Solution
- Step 1: Write the proportion equation
74,599.71 : 102,948.91 = 40,609.18 : x - Step 2: Convert to fraction form
74,599.71/102,948.91 = 40,609.18/x - Step 3: Cross multiply
74,599.71x = 102,948.91 × 40,609.18 - Step 4: Simplify right side
74,599.71x = 4,180,670,302.25 - Step 5: Solve for x
x = 4,180,670,302.25/74,599.71 - Step 6: Final answer
x = 56,041.37
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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.