Finding the Fourth Proportional to 77,381.70, 116,334.99 and 61,785.96
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Solution
The fourth proportional to 77,381.70, 116,334.99 and 61,785.96 is: 92,888.49
Step by Step Solution
- Step 1: Write the proportion equation
77,381.70 : 116,334.99 = 61,785.96 : x - Step 2: Convert to fraction form
77,381.70/116,334.99 = 61,785.96/x - Step 3: Cross multiply
77,381.70x = 116,334.99 × 61,785.96 - Step 4: Simplify right side
77,381.70x = 7,187,869,038.74 - Step 5: Solve for x
x = 7,187,869,038.74/77,381.70 - Step 6: Final answer
x = 92,888.49
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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.