Finding the Fourth Proportional to 115,763.31, 173,372.81 and 56,412.99
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Solution
The fourth proportional to 115,763.31, 173,372.81 and 56,412.99 is: 84,486.86
Step by Step Solution
- Step 1: Write the proportion equation
115,763.31 : 173,372.81 = 56,412.99 : x - Step 2: Convert to fraction form
115,763.31/173,372.81 = 56,412.99/x - Step 3: Cross multiply
115,763.31x = 173,372.81 × 56,412.99 - Step 4: Simplify right side
115,763.31x = 9,780,478,314.74 - Step 5: Solve for x
x = 9,780,478,314.74/115,763.31 - Step 6: Final answer
x = 84,486.86
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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.