Finding the Fourth Proportional to 81,343.23, 121,970.08 and 25,167.70
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Solution
The fourth proportional to 81,343.23, 121,970.08 and 25,167.70 is: 37,737.70
Step by Step Solution
- Step 1: Write the proportion equation
81,343.23 : 121,970.08 = 25,167.70 : x - Step 2: Convert to fraction form
81,343.23/121,970.08 = 25,167.70/x - Step 3: Cross multiply
81,343.23x = 121,970.08 × 25,167.70 - Step 4: Simplify right side
81,343.23x = 3,069,706,382.42 - Step 5: Solve for x
x = 3,069,706,382.42/81,343.23 - Step 6: Final answer
x = 37,737.70
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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.