Finding the Fourth Proportional to 87,880.23, 121,276.93 and 53,907.45
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Solution
The fourth proportional to 87,880.23, 121,276.93 and 53,907.45 is: 74,393.63
Step by Step Solution
- Step 1: Write the proportion equation
87,880.23 : 121,276.93 = 53,907.45 : x - Step 2: Convert to fraction form
87,880.23/121,276.93 = 53,907.45/x - Step 3: Cross multiply
87,880.23x = 121,276.93 × 53,907.45 - Step 4: Simplify right side
87,880.23x = 6,537,729,298.98 - Step 5: Solve for x
x = 6,537,729,298.98/87,880.23 - Step 6: Final answer
x = 74,393.63
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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.