Finding the Fourth Proportional to 70,976.34, 106,538.36 and 52,277.49
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Solution
The fourth proportional to 70,976.34, 106,538.36 and 52,277.49 is: 78,470.63
Step by Step Solution
- Step 1: Write the proportion equation
70,976.34 : 106,538.36 = 52,277.49 : x - Step 2: Convert to fraction form
70,976.34/106,538.36 = 52,277.49/x - Step 3: Cross multiply
70,976.34x = 106,538.36 × 52,277.49 - Step 4: Simplify right side
70,976.34x = 5,569,557,788.13 - Step 5: Solve for x
x = 5,569,557,788.13/70,976.34 - Step 6: Final answer
x = 78,470.63
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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.