Finding the Fourth Proportional to 78,948.49, 118,506.99 and 33,992.09
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Solution
The fourth proportional to 78,948.49, 118,506.99 and 33,992.09 is: 51,024.41
Step by Step Solution
- Step 1: Write the proportion equation
78,948.49 : 118,506.99 = 33,992.09 : x - Step 2: Convert to fraction form
78,948.49/118,506.99 = 33,992.09/x - Step 3: Cross multiply
78,948.49x = 118,506.99 × 33,992.09 - Step 4: Simplify right side
78,948.49x = 4,028,300,269.71 - Step 5: Solve for x
x = 4,028,300,269.71/78,948.49 - Step 6: Final answer
x = 51,024.41
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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.