Finding the Fourth Proportional to 75,763.62, 113,715.54 and 38,349.98
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Solution
The fourth proportional to 75,763.62, 113,715.54 and 38,349.98 is: 57,560.45
Step by Step Solution
- Step 1: Write the proportion equation
75,763.62 : 113,715.54 = 38,349.98 : x - Step 2: Convert to fraction form
75,763.62/113,715.54 = 38,349.98/x - Step 3: Cross multiply
75,763.62x = 113,715.54 × 38,349.98 - Step 4: Simplify right side
75,763.62x = 4,360,988,116.11 - Step 5: Solve for x
x = 4,360,988,116.11/75,763.62 - Step 6: Final answer
x = 57,560.45
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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.