Finding the Fourth Proportional to 78,625.41, 117,916.21 and 26,038.99
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Solution
The fourth proportional to 78,625.41, 117,916.21 and 26,038.99 is: 39,051.23
Step by Step Solution
- Step 1: Write the proportion equation
78,625.41 : 117,916.21 = 26,038.99 : x - Step 2: Convert to fraction form
78,625.41/117,916.21 = 26,038.99/x - Step 3: Cross multiply
78,625.41x = 117,916.21 × 26,038.99 - Step 4: Simplify right side
78,625.41x = 3,070,419,013.03 - Step 5: Solve for x
x = 3,070,419,013.03/78,625.41 - Step 6: Final answer
x = 39,051.23
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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.