Finding the Fourth Proportional to 94,787.40, 130,805.76 and 51,766.68
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Solution
The fourth proportional to 94,787.40, 130,805.76 and 51,766.68 is: 71,437.55
Step by Step Solution
- Step 1: Write the proportion equation
94,787.40 : 130,805.76 = 51,766.68 : x - Step 2: Convert to fraction form
94,787.40/130,805.76 = 51,766.68/x - Step 3: Cross multiply
94,787.40x = 130,805.76 × 51,766.68 - Step 4: Simplify right side
94,787.40x = 6,771,379,920.08 - Step 5: Solve for x
x = 6,771,379,920.08/94,787.40 - Step 6: Final answer
x = 71,437.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.