Finding the Fourth Proportional to 87,970.48, 121,415.50 and 50,244.72
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Solution
The fourth proportional to 87,970.48, 121,415.50 and 50,244.72 is: 69,346.99
Step by Step Solution
- Step 1: Write the proportion equation
87,970.48 : 121,415.50 = 50,244.72 : x - Step 2: Convert to fraction form
87,970.48/121,415.50 = 50,244.72/x - Step 3: Cross multiply
87,970.48x = 121,415.50 × 50,244.72 - Step 4: Simplify right side
87,970.48x = 6,100,487,801.16 - Step 5: Solve for x
x = 6,100,487,801.16/87,970.48 - Step 6: Final answer
x = 69,346.99
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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.