Finding the Fourth Proportional to 78,701.84, 118,069.16 and 26,107.53
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Solution
The fourth proportional to 78,701.84, 118,069.16 and 26,107.53 is: 39,166.74
Step by Step Solution
- Step 1: Write the proportion equation
78,701.84 : 118,069.16 = 26,107.53 : x - Step 2: Convert to fraction form
78,701.84/118,069.16 = 26,107.53/x - Step 3: Cross multiply
78,701.84x = 118,069.16 × 26,107.53 - Step 4: Simplify right side
78,701.84x = 3,082,494,006.24 - Step 5: Solve for x
x = 3,082,494,006.24/78,701.84 - Step 6: Final answer
x = 39,166.74
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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.