Finding the Fourth Proportional to 76,878.24, 106,095.12 and 48,573.60
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Solution
The fourth proportional to 76,878.24, 106,095.12 and 48,573.60 is: 67,033.56
Step by Step Solution
- Step 1: Write the proportion equation
76,878.24 : 106,095.12 = 48,573.60 : x - Step 2: Convert to fraction form
76,878.24/106,095.12 = 48,573.60/x - Step 3: Cross multiply
76,878.24x = 106,095.12 × 48,573.60 - Step 4: Simplify right side
76,878.24x = 5,153,421,920.83 - Step 5: Solve for x
x = 5,153,421,920.83/76,878.24 - Step 6: Final answer
x = 67,033.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.