Finding the Fourth Proportional to 93,583.36, 129,108.40 and 57,711.10
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Solution
The fourth proportional to 93,583.36, 129,108.40 and 57,711.10 is: 79,618.72
Step by Step Solution
- Step 1: Write the proportion equation
93,583.36 : 129,108.40 = 57,711.10 : x - Step 2: Convert to fraction form
93,583.36/129,108.40 = 57,711.10/x - Step 3: Cross multiply
93,583.36x = 129,108.40 × 57,711.10 - Step 4: Simplify right side
93,583.36x = 7,450,987,783.24 - Step 5: Solve for x
x = 7,450,987,783.24/93,583.36 - Step 6: Final answer
x = 79,618.72
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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.