Finding the Fourth Proportional to 94,190.09, 129,985.09 and 53,916.80
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Solution
The fourth proportional to 94,190.09, 129,985.09 and 53,916.80 is: 74,406.76
Step by Step Solution
- Step 1: Write the proportion equation
94,190.09 : 129,985.09 = 53,916.80 : x - Step 2: Convert to fraction form
94,190.09/129,985.09 = 53,916.80/x - Step 3: Cross multiply
94,190.09x = 129,985.09 × 53,916.80 - Step 4: Simplify right side
94,190.09x = 7,008,379,315.79 - Step 5: Solve for x
x = 7,008,379,315.79/94,190.09 - Step 6: Final answer
x = 74,406.76
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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.