Finding the Fourth Proportional to 81,869.24, 122,641.32 and 63,084.13
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Solution
The fourth proportional to 81,869.24, 122,641.32 and 63,084.13 is: 94,500.95
Step by Step Solution
- Step 1: Write the proportion equation
81,869.24 : 122,641.32 = 63,084.13 : x - Step 2: Convert to fraction form
81,869.24/122,641.32 = 63,084.13/x - Step 3: Cross multiply
81,869.24x = 122,641.32 × 63,084.13 - Step 4: Simplify right side
81,869.24x = 7,736,720,974.25 - Step 5: Solve for x
x = 7,736,720,974.25/81,869.24 - Step 6: Final answer
x = 94,500.95
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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.