Finding the Fourth Proportional to 69,693.08, 104,539.66 and 66,143.31
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Solution
The fourth proportional to 69,693.08, 104,539.66 and 66,143.31 is: 99,215.00
Step by Step Solution
- Step 1: Write the proportion equation
69,693.08 : 104,539.66 = 66,143.31 : x - Step 2: Convert to fraction form
69,693.08/104,539.66 = 66,143.31/x - Step 3: Cross multiply
69,693.08x = 104,539.66 × 66,143.31 - Step 4: Simplify right side
69,693.08x = 6,914,599,247.37 - Step 5: Solve for x
x = 6,914,599,247.37/69,693.08 - Step 6: Final answer
x = 99,215.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.