Finding the Fourth Proportional to 68,737.25, 102,971.64 and 47,386.19
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Solution
The fourth proportional to 68,737.25, 102,971.64 and 47,386.19 is: 70,986.75
Step by Step Solution
- Step 1: Write the proportion equation
68,737.25 : 102,971.64 = 47,386.19 : x - Step 2: Convert to fraction form
68,737.25/102,971.64 = 47,386.19/x - Step 3: Cross multiply
68,737.25x = 102,971.64 × 47,386.19 - Step 4: Simplify right side
68,737.25x = 4,879,433,697.65 - Step 5: Solve for x
x = 4,879,433,697.65/68,737.25 - Step 6: Final answer
x = 70,986.75
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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.