Finding the Fourth Proportional to 74,106.07, 102,325.34 and 68,438.75
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Solution
The fourth proportional to 74,106.07, 102,325.34 and 68,438.75 is: 94,499.93
Step by Step Solution
- Step 1: Write the proportion equation
74,106.07 : 102,325.34 = 68,438.75 : x - Step 2: Convert to fraction form
74,106.07/102,325.34 = 68,438.75/x - Step 3: Cross multiply
74,106.07x = 102,325.34 × 68,438.75 - Step 4: Simplify right side
74,106.07x = 7,003,018,022.40 - Step 5: Solve for x
x = 7,003,018,022.40/74,106.07 - Step 6: Final answer
x = 94,499.93
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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.