Finding the Fourth Proportional to 69,644.30, 104,526.08 and 69,120.09
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Solution
The fourth proportional to 69,644.30, 104,526.08 and 69,120.09 is: 103,739.32
Step by Step Solution
- Step 1: Write the proportion equation
69,644.30 : 104,526.08 = 69,120.09 : x - Step 2: Convert to fraction form
69,644.30/104,526.08 = 69,120.09/x - Step 3: Cross multiply
69,644.30x = 104,526.08 × 69,120.09 - Step 4: Simplify right side
69,644.30x = 7,224,851,711.35 - Step 5: Solve for x
x = 7,224,851,711.35/69,644.30 - Step 6: Final answer
x = 103,739.32
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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.