Finding the Fourth Proportional to 48,657.80, 72,986.70 and 27,589.70
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Solution
The fourth proportional to 48,657.80, 72,986.70 and 27,589.70 is: 41,384.55
Step by Step Solution
- Step 1: Write the proportion equation
48,657.80 : 72,986.70 = 27,589.70 : x - Step 2: Convert to fraction form
48,657.80/72,986.70 = 27,589.70/x - Step 3: Cross multiply
48,657.80x = 72,986.70 × 27,589.70 - Step 4: Simplify right side
48,657.80x = 2,013,681,156.99 - Step 5: Solve for x
x = 2,013,681,156.99/48,657.80 - Step 6: Final answer
x = 41,384.55
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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.