Finding the Fourth Proportional to 68,459.98, 102,605.16 and 38,787.88
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Solution
The fourth proportional to 68,459.98, 102,605.16 and 38,787.88 is: 58,133.77
Step by Step Solution
- Step 1: Write the proportion equation
68,459.98 : 102,605.16 = 38,787.88 : x - Step 2: Convert to fraction form
68,459.98/102,605.16 = 38,787.88/x - Step 3: Cross multiply
68,459.98x = 102,605.16 × 38,787.88 - Step 4: Simplify right side
68,459.98x = 3,979,836,633.46 - Step 5: Solve for x
x = 3,979,836,633.46/68,459.98 - Step 6: Final answer
x = 58,133.77
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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.