Finding the Fourth Proportional to 91,098.41, 136,607.90 and 48,394.53
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Solution
The fourth proportional to 91,098.41, 136,607.90 and 48,394.53 is: 72,570.70
Step by Step Solution
- Step 1: Write the proportion equation
91,098.41 : 136,607.90 = 48,394.53 : x - Step 2: Convert to fraction form
91,098.41/136,607.90 = 48,394.53/x - Step 3: Cross multiply
91,098.41x = 136,607.90 × 48,394.53 - Step 4: Simplify right side
91,098.41x = 6,611,074,872.81 - Step 5: Solve for x
x = 6,611,074,872.81/91,098.41 - Step 6: Final answer
x = 72,570.70
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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.