Finding the Fourth Proportional to 86,281.68, 129,422.61 and 27,122.52
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Solution
The fourth proportional to 86,281.68, 129,422.61 and 27,122.52 is: 40,683.81
Step by Step Solution
- Step 1: Write the proportion equation
86,281.68 : 129,422.61 = 27,122.52 : x - Step 2: Convert to fraction form
86,281.68/129,422.61 = 27,122.52/x - Step 3: Cross multiply
86,281.68x = 129,422.61 × 27,122.52 - Step 4: Simplify right side
86,281.68x = 3,510,267,328.18 - Step 5: Solve for x
x = 3,510,267,328.18/86,281.68 - Step 6: Final answer
x = 40,683.81
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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.