Finding the Fourth Proportional to 71,023.10, 106,551.03 and 21,102.08
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Solution
The fourth proportional to 71,023.10, 106,551.03 and 21,102.08 is: 31,657.99
Step by Step Solution
- Step 1: Write the proportion equation
71,023.10 : 106,551.03 = 21,102.08 : x - Step 2: Convert to fraction form
71,023.10/106,551.03 = 21,102.08/x - Step 3: Cross multiply
71,023.10x = 106,551.03 × 21,102.08 - Step 4: Simplify right side
71,023.10x = 2,248,448,359.14 - Step 5: Solve for x
x = 2,248,448,359.14/71,023.10 - Step 6: Final answer
x = 31,657.99
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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.