Finding the Fourth Proportional to 74,113.92, 102,277.08 and 40,122.39
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Solution
The fourth proportional to 74,113.92, 102,277.08 and 40,122.39 is: 55,368.83
Step by Step Solution
- Step 1: Write the proportion equation
74,113.92 : 102,277.08 = 40,122.39 : x - Step 2: Convert to fraction form
74,113.92/102,277.08 = 40,122.39/x - Step 3: Cross multiply
74,113.92x = 102,277.08 × 40,122.39 - Step 4: Simplify right side
74,113.92x = 4,103,600,691.21 - Step 5: Solve for x
x = 4,103,600,691.21/74,113.92 - Step 6: Final answer
x = 55,368.83
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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.