Finding the Fourth Proportional to 92,428.18, 138,651.99 and 30,103.54
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Solution
The fourth proportional to 92,428.18, 138,651.99 and 30,103.54 is: 45,158.48
Step by Step Solution
- Step 1: Write the proportion equation
92,428.18 : 138,651.99 = 30,103.54 : x - Step 2: Convert to fraction form
92,428.18/138,651.99 = 30,103.54/x - Step 3: Cross multiply
92,428.18x = 138,651.99 × 30,103.54 - Step 4: Simplify right side
92,428.18x = 4,173,915,727.04 - Step 5: Solve for x
x = 4,173,915,727.04/92,428.18 - Step 6: Final answer
x = 45,158.48
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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.