Finding the Fourth Proportional to 92,489.29, 138,738.71 and 29,316.12
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Solution
The fourth proportional to 92,489.29, 138,738.71 and 29,316.12 is: 43,975.70
Step by Step Solution
- Step 1: Write the proportion equation
92,489.29 : 138,738.71 = 29,316.12 : x - Step 2: Convert to fraction form
92,489.29/138,738.71 = 29,316.12/x - Step 3: Cross multiply
92,489.29x = 138,738.71 × 29,316.12 - Step 4: Simplify right side
92,489.29x = 4,067,280,671.01 - Step 5: Solve for x
x = 4,067,280,671.01/92,489.29 - Step 6: Final answer
x = 43,975.70
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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.