Finding the Fourth Proportional to 71,312.08, 106,966.20 and 21,392.08
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Solution
The fourth proportional to 71,312.08, 106,966.20 and 21,392.08 is: 32,087.54
Step by Step Solution
- Step 1: Write the proportion equation
71,312.08 : 106,966.20 = 21,392.08 : x - Step 2: Convert to fraction form
71,312.08/106,966.20 = 21,392.08/x - Step 3: Cross multiply
71,312.08x = 106,966.20 × 21,392.08 - Step 4: Simplify right side
71,312.08x = 2,288,229,507.70 - Step 5: Solve for x
x = 2,288,229,507.70/71,312.08 - Step 6: Final answer
x = 32,087.54
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1.5x scale
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.