Finding the Fourth Proportional to 76,438.62, 114,605.58 and 38,926.08
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Solution
The fourth proportional to 76,438.62, 114,605.58 and 38,926.08 is: 58,362.46
Step by Step Solution
- Step 1: Write the proportion equation
76,438.62 : 114,605.58 = 38,926.08 : x - Step 2: Convert to fraction form
76,438.62/114,605.58 = 38,926.08/x - Step 3: Cross multiply
76,438.62x = 114,605.58 × 38,926.08 - Step 4: Simplify right side
76,438.62x = 4,461,145,975.53 - Step 5: Solve for x
x = 4,461,145,975.53/76,438.62 - Step 6: Final answer
x = 58,362.46
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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.