Finding the Fourth Proportional to 75,505.74, 113,255.99 and 19,346.31
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Solution
The fourth proportional to 75,505.74, 113,255.99 and 19,346.31 is: 29,018.79
Step by Step Solution
- Step 1: Write the proportion equation
75,505.74 : 113,255.99 = 19,346.31 : x - Step 2: Convert to fraction form
75,505.74/113,255.99 = 19,346.31/x - Step 3: Cross multiply
75,505.74x = 113,255.99 × 19,346.31 - Step 4: Simplify right side
75,505.74x = 2,191,085,467.71 - Step 5: Solve for x
x = 2,191,085,467.71/75,505.74 - Step 6: Final answer
x = 29,018.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.