Finding the Fourth Proportional to 71,960.68, 107,948.70 and 19,370.92
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Solution
The fourth proportional to 71,960.68, 107,948.70 and 19,370.92 is: 29,058.45
Step by Step Solution
- Step 1: Write the proportion equation
71,960.68 : 107,948.70 = 19,370.92 : x - Step 2: Convert to fraction form
71,960.68/107,948.70 = 19,370.92/x - Step 3: Cross multiply
71,960.68x = 107,948.70 × 19,370.92 - Step 4: Simplify right side
71,960.68x = 2,091,065,631.80 - Step 5: Solve for x
x = 2,091,065,631.80/71,960.68 - Step 6: Final answer
x = 29,058.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.